Consider a toluene-benzene solution in which the mole-fraction of toluene is 0.33. At a temperature of 300 K, the total vapor pressure of this solution is 7.89 kPa, and the partial pressures of the toluene and benzene constituents of the vapor are Ptoluene = 1.214 kPa and Pbenzene = 6.677 kPa, respectively. At 300 K, the vapor pressure of pure liquid toluene is P* = 3.572 kPa and the vapor pressure of pure liquid benzene is P* = 9.657 kPa. What are the activities (a) and activity coefficients (γ) of the toluene and benzene constituents of the solution?

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.