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Chapter 4 Assignment

Chapter 4 Assignment

Q 1.Does the First Law of Thermodynamics imply a directionality in nature? 2. What is specific heat capacity? Which heats more quickly, a kilogram of water or a kilogram of copper? Why? 3. What are the three different ways by which heat is transferred? Give an example of how each of them works in your house? 4. What is the difference between temperature and heat? 5. What makes a good conductor of heat? What makes a good insulator? 6. Explain why heat only flows spontaneously from hot to cold objects. 7. Describe the three common temperature scales. What fixed points are used to calibrate them? 8. State the second law of thermodynamics in three different ways. In what ways are these three statements equivalent? 9. What is entropy? Give an example of a situation in which entropy increases. Can the entropy of an isolated system decrease? If so, how? 10. In what way is aging an example of the second law of thermodynamics?

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1. No. the first law of thermodynamics does not imply directionality in nature. It cannot tell about the heat transfer process that is the process of heat transfer from cold object to hot object and the conversion of heat energy cannot be interpreted by the first law of thermodynamics. It only quantifies the energy amount. 2. Specific heat capacity can be defined as the temperature required to increase the temperature of any substance of unit mass.