The enzyme catalase catalyzes the decomposition of hydrogen peroxide by the exothermic reaction H2O2(aq) → H2O(l) + ½ O2(g). Suppose that a small amount of solid catalase is added to a 0.1 M aqueous solution of hydrogen peroxide in a calorimeter, with the initial temperature of the solution being 25oC. If all the heat liberated in the reaction is retained by the solution, what will be the final temperature of the solution after the reaction mixture has reached its final equilibrium state? (The relevant heats of formation for H2O2(aq) and H2O(l) are: ∆fH = -191.17 kJ/mol (for aqueous H2O2) and ∆fH = -285.83 kJ/mol (for liquid H2O). (The heat capacity of the solution may be taken as having a value of 4.18 kJ/K-L (i.e., 4.18 kJ/K per liter of 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.