Substance

Formula

M [kg/kmol]

hfo [kJ/kmol]

Carbon

C(s)

12.001

0

Hydrogen

H₂(g)

2.016

0

Nitrogen

N₂(g)

28.012

0

Oxygen

O₂(g)

32

0

Carbon monoxide

CO(g)

28.013

-110,530

Carbon dioxide

CO₂(g)

44.001

-393,520

Water Vapor

H₂O(g)

18.016

-241,820

Water

H₂O(l)

18.016

-285,820

Hydrogen peroxide

H₂O₂(g)

34.016

-136,310

Ammonia

NH₃(g)

17.03

-46,190

Methane

CH₄(g)

16.043

-74,850

Acetylene

C₂H₂(g)

26.038

226,730

Ethylene

C₂H₄(g)

24.034

52,280

Ethane

C₂H₆(g)

30.07

-84,680

Propylene

C₃H₆(g)

42.051

20,410

Propane

C₃H₈(g)

44.097

-103,850

n-Butane

C₄H₁₀(g)

58.123

-126,150

Benzene

C₆H₆(g)

78.114

82,930

n-Octane

C₈H₁₈(g)

114.231

-208,450

n-Octane

C₈H₁₈(l)

114.231

-249,950

n-Dodecane

C₁₂H₂₆(g)

170.22

-291,010

Methyl alcohol

CH₃OH(g)

32.043

-200,670

Methyl alcohol

CH₃OH(l)

32.043

-238,660

Ethyl alcohol

C₂H₅OH(g)

46.069

-235,310

Ethyl alcohol

C₂H₅OH(l)

46.069

-277,690

Oxygen

O(g)

16

249,190

Hydrogen

H(g)

1.008

218,000

Nitrogen

N(g)

14.006

472,650

Hydroxyl

OH(g)

17.008

39,460