The heat capacity of a substance can be measured under either constant-volume or constant-pressure conditions. Which of the following sets of relationships between Cv (heat capacity under constant-volume conditions) and Cp (heat capacity under constant-pressure conditions) are always true?

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.