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As per your syllabus, eqn 5.18, the entropy change for a REVERSIBLE process is given by which expression?
AΔS = q_rev / T
BΔS = nRT
CΔS = q / w
DΔS = q × T
Answer & Solution
Correct answer: A. ΔS = q_rev / T
As per your syllabus, eqn 5.18, ΔS = q_rev/T. Entropy change is inversely proportional to T (same q at low T causes more randomness).
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