Standard Heats of Formation Table

Compound ΔHf (kJ/mol) Compound ΔHf (kJ/mol) Compound ΔHf (kJ/mol) AgBr(s) -99.5 C2H2(g) +226.7 MgCl2(s) -641.8 AgCl(s) -127.0 C2H4(g) +52.3 MgCO3(s) -1113 AgI(s) -62.4 C2H6(g) -84.7 MgO(s) -601.8 Ag2O(s) -30.6 C3H8(g) -103.8 Mg(OH)2(s) -924.7 Ag2S(s) -31.8 n-C4H10(g) -124.7 MgSO4(s) -1278.2 Al2O3(s) -1669.8 n-C5H12(l) -173.1 MnO(s) -384.9 BaCl2(s) -860.1 C2H5OH(l) -277.6 MnO2(s) -519.7 BaCO3(s) -1218.8 CoO(s) -239.3 MnO2(s) -519.7 BaO(s) -558.1 Cr2O3(s) -1128.4 NaCl(s) -411.0 BaSO4(s) -1465.2 CuO(s) -155.2 NaF(s) -569.0 CaCl2(s) -795.0 Cu2O(s) -166.7 NaOH(s) -426.7 CaCO3 -1207.0 CuS(s) -48.5 NH3(g) -46.2 CaO(s) -635.5 CuSO4(s) -769.9 PCl3(g) -306.4 Ca(OH)2(s) -986.6 Fe2O3(s) -822.2 PCl5(g) -398.9 CaSO4(s) -1432.7 Fe3O4(s) -1120.9 SiO2(s) -859.4 CCl4(l) -139.5 HBr(g) -36.2 SnCl2(s) -349.8 CH4(g) -74.8 HCl(g) -92.3 SnCl4(l) -545.2 CHCl3(l) -131.8 HF(g) -268.6 SnO(s) -286.2 CH3OH(l) -238.6 HI(g) +25.9 SnO2(s) -580.7 CO(g) -110.5 HNO3(l) -173.2 SO2(g) -296.1 CO2(g) -393.5 H2O(g) -241.8 So3(g) -395.2 H2O(l) -285.8 NH4Cl(s) -315.4 ZnO(s) -348.0 H2O2(l) -187.6 NH4NO3(s) -365.1 ZnS(s) -202.9 H2S(g) -20.1 NO(g) +90.4 H2SO4(l) -811.3 NO2(g) +33.9 HgO(s) -90.7 NiO(s) -244.3 HgS(s) -58.2 PbBr2(s) -277.0 KBr(s) -392.2 PbCl2(s) -359.2 KCl(s) -435.9 PbO(s) -217.9 KClO3(s) -391.4 PbO2(s) -276.6 KF(s) -562.6 Pb3O4(s) -734.7 Standard Heats of Formation (25 Co and 1.00 atm)