Standard thermodynamics properties of chemical substances Chemicals AHme /kj mol △AGne/kj Jmol Son/j molK-I Bao(s) -131.0×4.184=548.1(-124.38×4.184=)17.23×4.184=72.09 BaSO4(s)-3521×4.184=-14732(325.5×4.184=)316×4.184=1322 SO3(g) 94.58×4184=39572(-8869×4184=)6134×4.184=256.6 NH4HCO3(s)-203.0×4.184=84935(-1592×4.184=) 28.9×4.184=120.9 H2O() 68315×4184=285.8(56687×4.184=)16.71×4.184=69.91 H,o(g) -57796×4.184=-241.8(-54634×4.184=)45.104×4.184=188.7 NH3g -11.02×4.184=46.1(-3.94×4.184=) 45.97×4.184=192.3 CO2(g) 94.05×4.184=393.5(-96.26×4.184=)5107×4184=213.7 C6H14 7.52×4.184=1988(-0.91×4.184=) 70.76×4.184=296.1 C6H14(g) 3996×4.184=1672(-784×4.184=) 9283×4.184=388.4 O2(g) 49.00×4.184=205.0Standard thermodynamics properties of chemical substances Chemicals fHm  /kj.mol –1 fGm  /kj.mol –1 Sº m/ j.mol-1 .K-1 BaO (s) -131.0 4.184=-548.1 (-124.38 4.184=) 17.23 4.184= 72.09 BaSO4 (s) -352.1 4.184=-1473.2 ( -325.5 4.184=) 31.6 4.184= 132.2 SO3 (g) -94.58 4.184=-395.72 ( -88.69 4.184=) 61.34 4.184= 256.6 NH4HCO3 (s) -203.0 4.184=-849.35 ( -159.2 4.184=) 28.9 4.184= 120.9 H2O(l) -68.315 4.184=-285.8 ( -56.687 4.184=) 16.71 4.184=69.91 H2O(g) -57.796 4.184=-241.8 ( -54.634 4.184=) 45.104 4.184=188.7 NH3 (g) -11.02 4.184=-46.11 ( -3.94 4.184=) 45.97 4.184=192.3 CO2 (g) -94.05 4.184=-393.5 ( -96.26 4.184=) 51.07 4.184= 213.7 C6H14 (l) -47.52 4.184=-198.8 (-0.91 4.184= ) 70.76 4.184=296.1 C6H14 (g) -39.96 4.184=-167.2 (-7.84 4.184= ) 92.83 4.184= 388.4 O2 (g) 0 0 49.00 4.184= 205.0