Chemistry - Physical Chemistry - Advanced - Spontaneity and free energy - Free Energy and Equilibrium
6 problems. Q1: 'ΔH = +100 kJ, ΔS = +200 J/K. T_crossover = ΔH/ΔS = ___K' (500). Q2: 'At T = 600K (above crossover), reaction is ___ (spontaneous/non-spontaneous)' (spontaneous). Q3: 'ΔG° = -RT ln K. If ΔG° = -5700 J/mol at 298K: lnK = 5700/(8.314×298) = ___. K = ___' (2.30, 10.0). Q4: 'If K = 1, th