Endothermic Reaction Examples

Heres a list of examples of endothermic reactions. You can use these when asked to cite an example or to get ideas to set up a demonstration of an endothermic reaction or process. Endothermic Reaction Definition An endothermic reaction is any chemical reaction that absorbs heat from its environment. The absorbed energy provides the activation energy for the reaction to occur. A hallmark of this type of reaction is that it feels cold. Endothermic Chemical Reactions A good example of an endothermic reaction includes dissolving a salt. It doesnt have to be table salt, nor does the solvent need to be water. The reaction of barium hydroxide octahydrate crystals with dry ammonium chlorideDissolving ammonium chloride in waterThe reaction of thionyl chloride (SOCl2) with cobalt(II) sulfate heptahydrateMixing water and ammonium nitrateMixing water with potassium chlorideReacting ethanoic acid with sodium carbonatePhotosynthesis (chlorophyll is used to react carbon dioxide plus water plus energy to make glucose and oxygen) Endothermic Processes These examples could be written as chemical reactions, but are more generally considered to be endothermic or heat-absorbing processes: Melting ice cubesMelting solid saltsEvaporating liquid waterConverting frost to water vapor (melting, boiling, and evaporation, in general, are endothermic processesMaking an anhydrous salt from a hydrateForming a cation from an atom in the gas phaseSplitting a gas moleculeSeparating ion pairsCooking an eggBaking bread Endothermic and Endergonic An endothermic reaction is a type of endergonic reaction. However, not all endergonic reactions are endothermic. Endothermic reactions involve heat absorption. Other forms of energy which might be absorbed in an endergonic reaction include sound and light.

A Personal Experience With Mexican American Culture

A Personal Experience With Mexican American Culture This is a narrative of one Mexican American woman’s experiences and her views on the importance of passing down the cultural beliefs of her ancestors. In the section of the country in which I live there is a large population within the community of Mexican American culture. Although I have frequent contact with people of Mexican American heritage either through employment or interaction out in the community, I have a limited understanding of their culture. For this reason, I chose to learn more about the population of people I have frequent contact with and as a professional work with as clients in the field of mental health counseling. The quest of finding someone knowledgeable to discuss the population, their cultural background and some of their necessities, as well as some past experiences, led me towards contacting a church. This took calling two different churches before the person at the second church informed me that I needed to speak with, Mrs. Socorro Garcia head of their Hispanic Ministries. Unfortunately, Mrs. Garcia was on vacation when I called, but I was able to speak with her over the phone the following week, setting up an interview in person at her office a couple days later. This was a relief because I was becoming concerned about locating someone for a personal interview. Primary Cultural Values Mrs. Garcia is a middle age Mexican American woman, first generation acculturation into the societal beliefsShow MoreRelatedTaco Us How Mexican Food Became More American Than Apple Pie1384 Words   |  6 Pages2016 â€Å"Taco USA†: Gustavo Arellano’s Response to a Tater Tot Burrito â€Å"Taco USA: How Mexican Food Became More American Than Apple Pie† was written in 2012 by Gustavo Arellano, a prolific food author for the Orange County newspaper OC Weekly. 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A comparison of Fluvial and Glacial Sediments (deposits) In the Glen Rosa area of Arran Free Essays

string(92) " 987 382 The slip off slope – 987 383 I will record my results on the attached sheet\." The aim of my investigation is to ‘compare the Fluvial and Glacial sediments in the Glen Rosa area’. I will use a variety of experiments and methods to collect my results. My investigation will be based on proving these hypotheses are correct. We will write a custom essay sample on A comparison of Fluvial and Glacial Sediments (deposits) In the Glen Rosa area of Arran or any similar topic only for you Order Now I hope to show that: * Fluvial sediment will be generally smaller than glacial sediment. * Fluvial sediment will be more rounded than glacial sediment. To provide evidence of these hypotheses I will look at river sediment on the fluvial slip off slope and compare it with that of a glacial deposit in the form of a terminal moraine. Slip off slope; The slip off slope Terminal moraine; I will also be considering; The difference in B Axis length, Roundness, Sediment composition and Sorting. I expect the glacial deposits to be more angular than that of the fluvial deposits because the rate of erosion is different. In fluvial erosion the rocks are in constant erosion from frequently colliding (attrition) with other rock material. I would expect more edges of the rock to be rounded because the chances are they would have been knocked off. The glaciated deposits however, I would expect to be more angular because they collide less. I am going to collect a range of results which will hopefully provide evidence that my theories are correct. To collect these results I will: * Use appropriate methods to measure and accurately record my results to prove my hypothesis correct. I will measure the length of a slip off slope (and moraine vertically if possible). The length divided by twenty, will be the length of the intervals for my measurements. At each interval I will proceed to measure these factors. I. Roundness II. Orientation III. Length of the B axis. (stone width) By doing this I will collect sufficient evidence to support or disprove my hypothesis from the results. I am going to use twenty readings to give me an accurate sample of the whole geographical feature. Points to note: Glen Rosa is a NTS area – conservation issues do not allow us to move scenery – including rocks. This could be a limiting factor as we may not be able to locate all the results we need. And to what extent do we measure sediment? After all a grain of dirt is a form of sediment, but is it practical to measure a grain of dirt? My project also involves considering how glacial and fluvial deposits vary in: * Sorting (division into coarse, medium and fine sizes). * And the orientation of the B axis. * And composition ( rock type ) The orientation is the alignment of the B axis. River deposits are measured on a slip off slope and glacial deposits in a terminal moraine, with the following expectations: * Water borne sediment will be sorted into size categories, the largest material being dumped upstream first, (upstream where the water flow is strongest) and the finest last (downstream where the flow is weakest). Glacial deposits however will be dumped irregularly because they ‘melt out’ of the ice. * River sediment will have been rounded by river transport and attrition whereas glacial sediment, having only travelled a sort distance, will be angular. And slip off slope deposits will lie with their B axis at right angles to the flow of the river whereas glacial deposits are thought to lie in the ice with their A axis parallel to the direction of flow. Risk assessment. The axis of a rock are as follows: The A axis (Length of rock) The B axis (Width of rock) The C axis (Depth of the rock) Apparatus needed for my investigation: * Callipers * Compass clinometer * A water-proof notebook/pad * A pencil * Hand lens * Sorting chart * Powers Roundness index * Measuring tape – 20m length * Camera (to record locations and to provide secondary evidence) * Map to find location and note grid references Note Because I was working in a group and am collecting data for the group it is imperative that each of us has their own role and each must keep to that role. This is because the sake of a fair test. For example, If I read the callipers at the start I must read them throughout because the others eyesight and judgment may not be the same as mine, so if each person continues to do one job their judgment will not be too diverse. I am going to collect my evidence to prove my theory by doing thus: I. Firstly I am going to assess the possible location of a moraine and a slip off slope. II. Secondly I am going to travel to the Glen Rosa valley area. III. Then I will proceed to go to the site and take photographs. IV. I will measure the article in question by using a transect of the slip off slope/ terminal moraine. V. Then I will collect the evidence I need by accurately measuring and recording my results. I shall be looking at the ; a. Roundness b. Orientation c. Length of the B axis. I will measure the transect by measuring a point across the hole moraine / slip off slope and divide it by 20.The results from that then apply to the collecting of the samples, at each interval one should proceed to measure the nearest sample. I will measure Roundness by- comparing sediment sample to the guide shown below, this may be difficult to decide which category the rock goes into however for the sake of speed it was my primary choice. I will measure orientation by – locating the b axis and using the compass clinometer I will measure the orientation. I will measure the length of the B axis by – using callipers and reading off the rule. I will collect 10 (20 if possible) readings from each site to give me a suitable range of results. The locations I have chosen are highlighted on the map and the grid references are below: The terminal moraine – 987 382 The slip off slope – 987 383 I will record my results on the attached sheet. I will present my evidence as a range of graphs with attached section on collecting recording and presenting evidence. Stage 2 collecting, recording and presenting evidence. On the Day when we travelled to these two grid references the terminal moraine on 987 382 and the slip off slope on 987 383, I worked with 2 other people to obtain evidence/results for my investigation, they were Matthew Cruse and Lawrence Card. This was the original plan for the results table we were going to use. However during collecting the evidence our group decided we could double the amount of our results in ample time. So this is the real results table we developed. We were helped by 1 person in identifying some of the rocks, she was called Lucy and she was an instructor for this course. On the actual day we collected 20 samples from each site both the terminal moraine and the slip off slope. Our results table is as below; Graph sheet 1 Some graphs may help to show the evidence. Firstly the length of the b axis against the length of the slip off slope. (Sample every 1 meter). Anomalous point Graph sheet 2 These are the results for the composition of both fluvial and glacial deposits. Here O represents other specimen of rock P is Phyllite and G is granite Fluvial deposits Glacial deposits As it is clear here the fluvial deposits have more variation that that of the glacial deposits, the glacial deposits contain no other rock types. Graph sheet 3 Charts to compare roundness of fluvial deposits against the roundness of glacial deposits. It is clear here that glacial deposits are more randomised and do not follow any particular roundness, where as the fluvial deposits are mostly in-between the 2-3 category Graph sheet 4. Here are 2 charts to compare the orientation of the B axis. Fluvial orientation Glacial orientation Both graphs show completely opposite finding which was totally as I had expected, mainly the glacial deposits were all at right angles to the flow of direct which is what happens. The fluvial was parallel to the flow of water. The glacial sediments B axis was not parallel to the flow of the glacier because it travels on it’s A axis which is as I predicted. Stage 3 description, analysis and interpretation of evidence. All of my data I collected I believe I collected accurately. But unfortunately my results do not support my predictions very accurately which were; * Fluvial sediment will be generally smaller than glacial sediment. * Fluvial sediment will be more rounded than glacial sediment. The graphs which show sorting on the B axis for the fluvial sediment are vast variations than those predicted although they do provide weak evidence (graph sheet 1). For example, on the photograph below it is clear that there is sorting on the slip off slope. This sorting is the absolute opposite to what I had expected in my prediction. This variation may exist because it is a frequently visited spot and people very often pick up rocks to study them and cast them down in a different locations, this may have happened here. Or another reason could be my inaccurate measurements, or even the choice of my samples. Section 4 drawing and justifying conclusion and evaluation. Here were my main predictions * Fluvial sediment will be generally smaller than glacial sediment. * Fluvial sediment will be more rounded than glacial sediment. Here are the sub predictions * Sorting (division into coarse, medium and fine sizes). * And the orientation of the B axis. * And composition ( rock type ) As far as the sorting for the slip off slope is concerned, I found that my results are conclusive but very weakly so. The results did support my prediction roughly but not the extent I had hoped for. You can see evidence for this though section 3. Because I found that the slip off slope is not how I expected I have used additional secondary evidence to show what my results should have been like according to my prediction and the laws of fluvial deposition. There is only one reason I can see for my weak results for the slip off slope – human interference, it is easy to pick up something and place it down somewhere else, could that of happened here? Since it is a widely used site I believe this is the case. I believe that the evidence for the sorting I obtained from the fluvial sample appeared to be back to front the larger sediment should have been deposited at the front not the back. The composition is definitely as I had expected. So as far as the composition is concerned I found a definite conclusion that my sub-predictions were true, the fluvial deposits covered a wider range of rock type because it could transport more diverse material than the glacier. Although there is little evidence to support this there is a definite link. The orientation was not as I had of expected. I believed the glacier to be more randomised where as the fluvial to be more sorted. Evaluation We had a few problems during this investigation many of them minor, but a few were major. For example, since we did not have any artificial light and light throughout the day was fading we may have made a few mistakes on measurements, this may be a reason for some if not all of the anomalous points. One person in my group noted all of the data down on the day so we could have misjudged his handwriting and could have written variable data. Below is a simple diagram of some of our problems: The Main weaknesses and faults. The main weaknesses during my investigation were the lack of conclusive results as shown in the graphs. However this could be rectified by using secondary data, such as maps, other people’s results as shown during my project shown after this page. As always any investigation can be improved by the quantity of evidence, and also the quantity. If I could obtain more evidence from different locations, i.e. not just from Glen Rosa it would provide a much better supporting structure for my predictions. Although this would involve thousands of pounds it would have a very accurate conclusion. How to cite A comparison of Fluvial and Glacial Sediments (deposits) In the Glen Rosa area of Arran, Papers

Business Models Sustainable Technologies

Question: Discuss about the Business Models for Sustainable Technologies. Answer: Introduction The work nature has been changing drastically in this current world. The assimilation of the world class technologies and innovations have brought the effective changes in the automotive industries (Palin et al. 2012). The study will thus be focusing on the changes in the work nature during the manufacturing process of Tesla Motors Model S. The video clip presents the sequential steps that are used in the factories during the manufacturing process of the cars. Recognising the changes in the work process, the future required changes will be predicted accordingly. The description of the employment condition will be determined. After identifying such functionalities, the required adaptation for the future workforces will be discussed in this study. Changing Nature of the Work The identification of this manufacturing process, it is noted that there are many of the changes in the workplace have been undertaken by the manufacturing team of Tesla. This section of the study will be identifying the changes associated with the manufacturing process Changes in the Manual Transfers Recognising the manufacturing process in the factory of Tesla motors, it is noted that previously, the manufacturing process was undertaken by depending on the workers. The manual transferring of the technologies and machineries during the manufacturing process was found in the initial stage. However, eventually, the process has transformed drastically by the implementation of the structured technologies. The materials are now transferred through the technologies and assemble together to manufacture the cars. Assimilation of the Process At the initial stage, the manufacturing process was divided into different steps. In this current time, such sequential steps are transformed. If concentrated on the current manufacturing process, it can be seen that the different steps are collaged and brought together to save the time of manufacturing cars (Chen and Perez 2015). The technologies are brought together to form the major engine, which will be put into the vehicle. Centralised Location In this current manufacturing procedure, it has been noted that the manufacturing team has brought the models together in the centralised location. The ruling body centre is associated with the stamping panels for putting the models together. The manufacturing process starts from manufacturing the floor of the car and then moves to the body sides. Self Piercing Rivets In the previous work procedure, the welders used to pierce the machineries whenever it was required. However, in this current manufacturing process, it is noticed that the factory has the self-piercing rivets (Goodrick 2014). It decreases the accidental risks of the associated workforce. There is the cold metal transfer conventional resistance welding system that is minimising the risks. Necessary Changes If the company would be able to accept such changes, in next 5-10 years, the company will be able to strengthen the competitive position by bringing more innovations in the automotive industry. The company may even manufacture the self-driven cars and associate more innovative technologies that will be beneficial enough in acquiring profitability. It will in fact increase the productivity and determine the strengthened reputation of the company. The company will be able to strengthen the brand identity as well. Implications for work conditions After identifying the associated manufacturing process, some of the predications can be made for the future prospects. It has been identified that the company has been implementing new technologies for assembling the model and manufacturing the vehicles (Spencer 2016). However, it can be predicted that if the associated workers will receive the proper training session for using such technologies, it will minimise the risk factors. It has been noticed that in the manufacturing factories, there is the accidental risks since the workers have to work with the heavy technologies associated with the manufacturing process. Hence, it is necessary for them to maintain the proper cautions while using such technologies. Hence, the proper training session is necessary for each of the workers. Further Adoption of Changes After recognising the adopted changes within the manufacturing factory, the company requires focusing on several adoptions that will be beneficial for the associated workers. These adoptions are discussed further: Job Satisfaction The associated workers are involved with the manufacturing process that includes much risky environment. It is necessary for the company to pay attention on the safer work environment that can bring the security among the associated workers. The company requires paying attention to the health safety and security purposes, which are beneficial enough in bringing the job satisfaction among the employees (Liu et al. 2014). Motivation Workplace motivation is most necessary for retaining the workforces in a company. The performance quality of the workers determines the success of the company. Hence, it is essential for the company to provide the proper training sessions to the workers, which will beneficial for making them knowledgeable about using the innovative technologies. The development or training session is even helpful enough in upgrading the professional skills of the employees. Accordingly, it will bring much motivational working environment that can enhance the performance parameter of the associated employees. Decision Making One of the major aspects of increasing the organisational productivity is the relevant decision making process. The workplace needs to consider the efficient management system that can undertake the proper decision relevant for the innovative functionalities. It has been noted that the company has been structuring the organisational functionalities by undertaking the innovative procedures and technologies (Bohnsack, Pinkse and Kolk 2014). Hence, it is necessary for the companies to recognise the underlying issues and other necessary activities that may increase the organisational productivity. After recognising such underlying scenario, the management requires undertaking the relevant decision. Moreover, while bringing the innovative technologies for the future innovations, the structured and efficient decisions are needed to be made by the management. Conclusion The discussion presented in this study is initiating the idea that in this current world, each of the organisations has been giving their best effort to remain competitive. The company like Tesla motors is not an exception. In order to bring much innovation, the company has been changing the work nature. The study also identified the future innovations that can strengthen the organisational position in a competitive world References Bohnsack, R., Pinkse, J. and Kolk, A., 2014. Business models for sustainable technologies: Exploring business model evolution in the case of electric vehicles.Research Policy,43(2), pp.284-300. Chen, Y. and Perez, Y., 2015, June. Business model design: lessons learned from Tesla Motors. InGerpisa Conference, ENS Cachan, Paris(pp. 10-12). Goodrick, S., 2014. Man and machine.The Lancet Neurology,13(11), p.1080. Liu, Y.E., Kang, Y., Wu, H., Chen, C. and Hon, E., 2014. Tesla Motors Inc. Case Synopsis.Burnaby BC: Simon Fraser University. Retrieved,10(18), p.2014. Palin, R., Johnston, V., Johnson, S., D'Hooge, A., Duncan, B. and Gargoloff, J.I., 2012.The Aerodynamic Development of the Tesla Model S-Part 1: Overview(No. 2012-01-0177). SAE Technical Paper. Spencer, F., 2016. Wicked Opportunities: 7 Shifts In the Age of Opportunity. The Magazine of the Rotman School of Management, pp.1-14.