Practice question · True or false
To find the entropy change of an irreversible process, you may integrate the actual heat divided by temperature along the real path.
Hints
- Which heat does the definition of entropy use?
- The reversible one, so an invented reversible path is needed.
Show the answer
False
Why
False, that underestimates the change every time, since for an irreversible cycle. Because is a state function, you invent any reversible path between the same endpoints and integrate along that.
Practise The Second Law and Entropy
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