⚙️ FE Exam Prep

The Clausius inequality states:

A Entropy always decreases
B ∮δQ/T ≤ 0 for any cyclic process (equality for reversible)
C Q = W always
D Temperature is constant

✓ Correct Answer: Option B

Clausius: cycle integral of δQ/T ≤ 0. For reversible cycle, = 0. For irreversible cycle, < 0. Basis of entropy concept.

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