The entropy change associated with the expansion of one mole of an ideal gas from an initial volume of V_i to a final volume of V_f at constant temperature is given by the equation,ΔS = R ln (V_f/V_i).What is the entropy change associated with the expansion of three moles of an ideal gas from an initial volume of V_i to a final volume of V_f at constant temperature?

Question

Quizplus · Accepted Answer

The entropy change associated with the expansion of n moles of an ideal gas is given by ΔS = nR ln(Vf/Vi) where Vf and Vi are the final and initial volumes at constant temperature. Substituting n = 3 in the equation, we get ΔS = 3R ln(Vf/Vi). Therefore, the correct answer is choice B.

The Entropy Change Associated with the Expansion of One Mole