Acetic acid, a weak acid, was added to a beaker containing water at 25°C, giving a solution containing molecular acetic acid, hydronium ion, and acetate ion at equilibrium. The temperature did not change.
(a) Is the solution process exothermic or endothermic?
(b) Was the dissolving process and partial ionization spontaneous?
(c) Did the entropy of the system increase or decrease?
(d) Did the entropy of the universe increase or decrease?