13) How much energy is required to decompose 612 g of PC13, according to the reaction below? The molar mass of PC13 is 137.32 g/mol and may be useful. 4 PC13(g) P4(s) + 6 Cl2(g) AH rxn = +1207 kJ A) 1.85 x 103 kJ B) 4.76 x 103 kJ C) 5.38 x 103 kJ D) 1.34 x 103 kJ E) 3.46 x 103 kJ 14) The A) Zero Law of Thermodynamics states that the entropy of the universe is increasing. B) First C) Second D) Third E) Fourth 15) (Correctly complete this statement) "The entropy of the universe is increasing A) because atoms have zero-point energy C) because of evolution " B) due to irreversible processes D) because energy in conserved 3