Table 13. Standard molar enthalpies of formation and burning of organic compounds at STP:  25° C and P0

Compound

Molar mass (g)

DHf 0 (kJˇ mol-1)

DHb0 (kJˇ mol-1)

CH4(g)

16.043

-74.81

-890.4

C2H6(g)

30.0

-84.7

-1559.8

C3H8(g)

44.0

-104.9

-2219.9

C4H10(g)

58.124

-126.11

-2877.0

C5H12(g)

72.151

-146.4

-3536.0

C6H14(l)

86.178

-198.7

-4163.0

C8H18(l)

114.23

-269.8

-5450.5

C2H4(g)

28.0

52.3

-1411.0

C6H12(l)

84.163

-156.2

-3920.0

C2H2(g)

26.038

+226.8

-1300.0

C6H6(l)

78.115

+48.99

-3268.0

C10H8(s)

128.175

+78.53

-5157.0

CH3OH(l)

32.042

-239.7

-726.1

C2H5OH(l)

46.0

-277.7

-1366.8

C6H5OH(l)

94.114

-165.0

-2231.0

CH3CHO(g)

44.054

-166.4

-1193.0

CH3COOC2H5(l)

88.107

-486.6

-2231.0

(CH3)2CO(l)

58.0

-1038.0

-1790.4

CH3COH(l)

60.053

-484.2

-874.4

C6H5COOH(s)

122.0

 

-3226.9

C6H5NH2(l)

93.129

-31.1

-3393.0

C6H12NH6(s)

180.0

-1260.0

-2816.0

C6H12NH6(s) -D

180.159

-1274.0

-2802.0

C6H12NH6(s) -D

180.159

-1268.0

-2802.0

C12H22O11(s)

342.0

-2221.0

-5640.9

C21H22O2N2(s)

334.0

 

-11237.0

NH2CONH2(s)

60.056

-333.0

-632.0