During the operation of a thermal machine, a reduction in the entropy of the working substance is quantified. In light of the second law of thermodynamics a) this result is acceptable, because not all the systems that participate in the process are being included. b) there must be an error in the calculation, because the entropy of the process cannot decrease. c) is acceptable, because in a process the entropy of the universe can decrease, but not in a cycle. d) the result is acceptable, because it must be an irreversible process.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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During the operation of a thermal machine, a reduction in the entropy of the working substance is
quantified. In light of the second law of thermodynamics
a) this result is acceptable, because not all the systems that participate in the process are
being included.
b) there must be an error in the calculation, because the entropy of the process cannot
decrease.
c)
is acceptable, because in a process the entropy of the universe can decrease, but not in a
cycle.
d) the result is acceptable, because it must be an irreversible process.
Transcribed Image Text:During the operation of a thermal machine, a reduction in the entropy of the working substance is quantified. In light of the second law of thermodynamics a) this result is acceptable, because not all the systems that participate in the process are being included. b) there must be an error in the calculation, because the entropy of the process cannot decrease. c) is acceptable, because in a process the entropy of the universe can decrease, but not in a cycle. d) the result is acceptable, because it must be an irreversible process.
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