Appendix A.3. Physical Properties of Inorganic and Organic Compounds

A.3-1. Standard Heats of Formation at 298.15 K (25°C) and 101.325 kPa (1 Atm Abs), (c) = crystalline, (g) = gas, (l) = liquid
  
Compound(kJ/kg mol)103kcal/g molCompound(kJ/kg mol)103kcal/g mol
NH3(g)−46.19−11.04CaCO3(c)−1206.87−288.45
NO(g)+90.374+21.600CaO(c)−635.5−151.9
H2O(l)−285.840−68.3174CO(g)−110.523−26.4157
H2O(g)−241.826−57.7979CO2(g)−393.513−94.0518
HCN(g)+130.1+31.1CH4(g)−74.848−17.889
HCl(g)−92.312−22.063C2H6(g)−84.667−20.236
H2SO4(l)−811.32−193.91C3H8(g)−103.847−24.820

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