Second law: ΔS > 0 for irreversible processes in isolated systems.
JEE Advanced 2026 — Physics Thermodynamics
The entropy of an isolated system in an irreversible process:
Verified 30 May 2026.
Decreases
Remains constant
Increases
First increases then decreases
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A Carnot engine operates between temperatures 600 K and 300 K. Its efficiency is:
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Which of the following are state functions?
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