Answered: 39. For any irreversible process, the…

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter22: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 22.4OQ: Of the following, which is not a statement of the second law of thermodynamics? (a) No heat engine...

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Question

39. For any irreversible process, the total entropy change

a)is a negative value
b)is greater than zero
c)is lesser than zero
d)cannot be determined immediately

40. The following are valid statements of the 2nd Law of
Thermodynamics EXCEPT

a)No engine can be more efficient than a Carnot engine operating between the same
two temperatures
b)It is impossible for any system to undergo a process in which it absorbs energy from
a reservoir and converts the heat completely to mechanical work
c)It is impossible for any process to have its sole result the transfer of heat from a
hotter to a cooler body
d)the total entropy of a system either increases or remains constant in any spontaneous
process; it never decreases

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