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Entropy change in case of reversible adiabatic process is

This question belongs to Chemical Engineering Chemical Engineering Thermodynamics
Chemical Engineering Thermodynamics
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Entropy change in case of reversible adiabatic process is

Answer & Solution
Correct Answer: Option B
We know for reversible process $$TdS = \delta Q$$   and since in adiabatic process $$\delta Q = 0 \Rightarrow TdS = 0$$     so reversible adiabatic process is an isentropic process.
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