Question

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

a.

reversible isothermal volume change.

b.

heating of a substance.

c.

cooling of a substance.

d.

simultaneous heating and expansion of an ideal gas.

Answer: (d).simultaneous heating and expansion of an ideal gas.

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

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