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The equation of the second law of thermodynamics says that____(a) Total change in entropy is always zero(b) We cannot find entropy for an irreversible process(c) Entropy change is defined as the heat added in an irreversible process(d) Entropy is a state processThis question was addressed to me in quiz.This intriguing question comes from A Brief Review of Thermodynamics topic in chapter Compressible Flow – Preliminary Aspects of Aerodynamics |
Answer» RIGHT option is (d) Entropy is a state PROCESS To EXPLAIN: According to the second law, entropy is a state process. We can find the entropy change by the HEAT added in a reversible process. Using the total head added, we can find the heat added in the irreversible process ALSO (since entropy is a state process). |
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