Physical Chemistry
Physical Chemistry
3rd Edition
ISBN: 9780321812001
Author: ENGEL, Thomas/ Reid
Publisher: Pearson College Div
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Chapter 5, Problem 5.6CP
Interpretation Introduction

Interpretation:

Whether the given process is reversible or not should be explained.

For the process where system is coupled to its surroundings, the change in entropy is equal to zero.

Concept Introduction:

Entropy is defined as the ratio of thermal energy to the temperature which is unavailable for work done. It is also defined as the measure of disorder of molecule of a system. It is an extensive property and state function.The spontaneous change takes place with an increase in entropy of the universe.

The expression is shown as:

  ΔSuniv=ΔSsys+ΔSsurr

The sum of entropy change of system and surrounding is equal to entropy change of universe.

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