If n moles of an ideal gas are compressed isothermally from an initial volume V1 to a final volume V2, the change in entropy is:
A)nR ln (V2/V1)
B)nRT ln (V2/V1)
C)nkB ln (V2/V1)
D) $n C_{v} \int d T / T$
E)n Cv/T

Question

Quizplus · Accepted Answer

The change in entropy during an isothermal process for an ideal gas is given by ΔS = nR ln(V2/V1).

If N Moles of an Ideal Gas Are Compressed Isothermally nCv∫dT/Tn C_{v} \int d T / TnCv​∫dT/T

If N Moles of an Ideal Gas Are Compressed Isothermally $n C_{v} \int d T / T$