John Schreifels @GMU: What is the total entropy change at 25…

John Schreifels @GMU: What is the total entropy change at 25oC for the reaction below, if the standard entropies of reactants and products are So (C(gr)) = 5.74 J/mol*K, So (H2(g)) = 130.68 J/mol*K, and So (C7H12(g)) = 407.0900 J/mol*K and the heat of formation of C7H12(g)) is 103.0600 kJ/mol.7C(gr) + 6H2(g) → C7H12(g)