Ideal Gas Enthalpy of Water Vapor (H2O)
Enthalpy of Formation: -241,826 (kJ/kmol)
Molecular Weight: 18.015 (kg/kmol)

Temp. [K]

Enthalpy [kJ/kmol]

Temp. [K]

Enthalpy [kJ/kmol]

Temp. [K]

Enthalpy [kJ/kmol]

Temp. [K]

Enthalpy [kJ/kmol]

298

0

300

62

650

12326

1000

25978

1700

57685

310

398

660

12696

1020

26805

1720

58663

320

735

670

13066

1040

27638

1740

59646

330

1072

680

13438

1060

28476

1760

60631

340

1410

690

13810

1080

29319

1780

61619

350

1748

700

14184

1100

30167

1800

62609

360

2088

710

14560

1120

31019

1820

63603

370

2427

720

14936

1140

31876

1840

64602

380

2768

730

15314

1160

32738

1860

65602

390

3110

740

15693

1180

33605

1880

66607

400

3452

750

16073

1200

34476

1900

67613

410

3795

760

16454

1220

35352

1920

68623

420

4139

770

16837

1240

36233

1940

69636

430

4484

780

17221

1260

37118

1960

70651

440

4830

790

17606

1280

38008

1980

71669

450

5176

800

17992

1300

38903

2000

72689

460

5524

810

18380

1320

39803

2050

75252

470

5873

820

18768

1340

40708

2100

77849

480

6222

830

19158

1360

41617

2150

80426

490

6573

840

19550

1380

42530

2200

83036

500

6924

850

19942

1400

43447

2250

85658

510

7277

860

20336

1420

44369

2300

88295

520

7630

870

20731

1440

45294

2350

90942

530

7985

880

21128

1460

46224

2400

93604

540

8341

890

21525

1480

47158

2450

96279

550

8697

900

21924

1500

48095

2500

98964

560

9055

910

22324

1520

49038

2550

101661

570

9414

920

22725

1540

49984

2600

104379

580

9774

930

23128

1560

50934

2650

107087

590

10135

940

23532

1580

51888

2700

109813

600

10498

950

23937

1600

52844

2750

112549

610

10861

960

24343

1620

53805

2800

115294

620

11226

970

24749

1640

54771

2850

118048

630

11591

980

25157

1660

55739

2900

120813

640

11958

990

25568

1680

56710

3000

126360

Adapted from TEST (The Expert System for Thermodynamics) <www.thermofluids.net> by S.Bhattacharjee, San Diego State University

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Engineering Thermodynamics by Israel Urieli is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License