Two 1-mol blocks of aluminum, one at 273 K and the other at 373 K, are brought into thermal contact. What will be the temperature of the two blocks when they have reached thermal equilibrium, and what will be the total entropy change (∆Stot) that accompanies the thermal equilibration process? (Assume that the two blocks of aluminum are in a container with walls that keep them completely isolated from outside surroundings, and take the heat capacity of the aluminum blocks to be Cp,m = 24.35 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.