Predict whether each of the following processes results in an increase in entropy in the system. (Define reactants and products as the system.)
(a) Water vapor condenses as dew (liquid water) at 0°C and 1 atm pressure.
(b) An exothermic reaction of Al(s) and Br₂(ℓ) forms Al₂Br₆(s).
(c) The endothermic decomposition of solid CaCO₃ at 800°C to produce an equilibrium mixture containing solid CaCO₃, solid CaO, and gaseous CO₂.
(d) One mol of AgCl(s) decomposes, forming 1.0 mole of Ag(s) and 0.5 mol Cl₂(g).