What is the change in the molar entropy of Ar(g) when it undergoes the following process: Ar(298 K, 1 bar) → Ar(100 K, 10 bar)? (You may assume that the argon behaves as an ideal gas and its heat capacity has a fixed value of Cp,m = 20.8 J/K-mol.)

MCQs on thermodynamics in classical mechanics systems. Topics include the first, second, and third laws of thermodynamics, energy, work, enthalpy, and entropy, spontaneity, chemical potential, equilibrium, phase changes, and chemical kinetics.