I need help with two Chemistry questions please.
1. The ΔG for the freezing point at H2O(l) at -10 °C is -210 J/mol, and the heat of fusion of ice at this temperature is 5610 J/mol. Find the entropy change of the universe when 1 mol of water freezes at -10 °C.
2. Which statement is true?
a. A reaction in which the entropy of the system increases can be spontaneous only if it is exothermic.
b. A reaction in which the entropy of the system increases can be spontaneous only if it endothermic.
c. A reaction in which the entropy of the system decreases can be spontaneous only if it is exothermic.