Question

2. Calculate the heats of combustion for the following reactions from the standard enthalpies of formation
listed in Appendix 2:
deltaH (C3H8)(g)=-103.9kj/mol
deltaH (H2)(g)= 0 kj/mol
deltaH (C2H6)(g)= -84.7 kj/mol
deltaH(CH4)(g)= -74.85 kj/mol
deltaH(H2S)(g)=-20.15 kj/mol
deltaH(O2)(g)= 0 kj/mol
deltaH(SO2)(g)= -296.1 kj/mol
deltaH(H2O)(l)= -285.8 kj/mol
deltaH(CL2)(g)= 0 kj/mol
deltaH(HCl)(g)=-92.3 kj/mol

a. C3H8 (g) + H2 (g) --> C2H6 (g) + CH4 (g)
b. 2 H2S (g) + 3 O2 (g) -->2 SO2 (g) + 2 H2O (l)
c. 2 Cl2 (g) + 2 H2O (l) -->2 HCl (g) + O2 (g)