The change in entropy for an ideal gas undergoing a thermodynamic process is (a) (S_{2}-S_{1}=-R ln frac{V_{1}}{V_{2}})

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The change in entropy for an ideal gas undergoing a thermodynamic process is

(a) \(S_{2}-S_{1}=-R \ln \frac{V_{1}}{V_{2}}\)

(b) \(S_{2}-S_{1}=-R \ln \frac{P_{1}}{P_{2}}\)

(c) \(S_{2}-S_{1}=R \ln \frac{V_{1}}{V_{2}}\)

(d) \(\quad S_{2}-S_{1}=R \ln \frac{P_{1}}{P_{2}}\)

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