The expression for entropy change given by, ΔS = nR ln (V₂/V₁) + nC_v ln (T₂/T₁) is valid for

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A. Reversible isothermal volume change

B. Heating of a substance

C. Cooling of a substance

D. Simultaneous heating and expansion of an ideal gas

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Accepted Answer

D. Simultaneous heating and expansion of an ideal gas

The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for