Table 12:Standard molar enthalpies of formation and burning of inorganic compounds at STP:  25° C and P0

Compound

Molar mass (g)

DHf0 (kJˇ mol-1)

C (diamant)

12.0

+1.9

C (graphite)

12.0

0.0

CO(g)

28.0

-110.7

CO2(g)

44.0

-393.5

CS2(l)

76.0

+89.7

Ca(OH)2(s)

74.078

-986.1

Cu(NO3)2(s)

187.546

-302.9

CuO(s)

79.546

-157.3

HCl(g)

36.5

-92.3

H2O(g)

18.0

-241.8

H2O(l)

18.0

-285.8

H2S(g)

34.0

-20.6

Hg(g)

200.59

+61.3

Hg(l)

200.59

0.0

Hg2Cl2(s)

472.085

-265.2

HgCl2(s)

271.495

-224.3

KClO3(s)

122.55

-397.7

KCl(s)

75.442

-436.7

NH3(g)

17.0

-46.1

NO(g)

30.0

+90.4

NO2(g)

46.0

+33.2

O2(g)

32.0

0.0

O3(g)

48.0

+142.7

SO2(g)

64.0

-296.8

SO3(g)

80.0

-395.7

H2SO4(l)

98.0

-811.3

Fe2O3(s)

159.6

-831.1

ZnO

81.4

-348.0

ZnS

97.4

-203.0

Mn3O4

229.0

-1444.5

CaCO3

100.1

-1210.0

CaO

40.08

-636.0

FeS2

119.81

-148.6