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Thermodynamics by Prasanna Kumar

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Chapter 7

Entropy and the Third Law of Thermodynamics

LEARNING OBJECTIVES
  • To be able to apply second law to general reversible processes and cycles
  • To derive the inequality of Clausius
  • To prove that entropy is a property
  • To prove the principle of entropy increase
  • To evaluate entropy changes for processes undergone in closed and open systems
  • To use entropy as a coordinate
  • To give different statements of the third law
  • To evaluate entropy, specific heats and β at absolute zero
  • To prove the unattainability of absolute zero
  • To establish the molecular basis of entropy

7.1 Introduction

The second law of thermodynamics and the corollaries of the second law, also called Carnot principles, were presented in the previous chapter. The absolute thermodynamic ...

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