Isochoric Molar Heat Capacity

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Element

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Notes

Argon

gas

1200 K

1 atm

12.47 J/(mol K)

1 bar

12.47 J/(mol K)

1000 K

1 atm

12.47 J/(mol K)

1 bar

12.47 J/(mol K)

780 K

1 atm

12.47 J/(mol K)

1 bar

12.47 J/(mol K)

680 K

1 atm

12.47 J/(mol K)

1 bar

12.47 J/(mol K)

580 K

1 atm

12.47 J/(mol K)

1 bar

12.47 J/(mol K)

490 K

1 atm

12.47 J/(mol K)

1 bar

12.47 J/(mol K)

440 K

1 atm

12.47 J/(mol K)

1 bar

12.47 J/(mol K)

390 K

1 atm

12.48 J/(mol K)

1 bar

12.48 J/(mol K)

340 K

1 atm

12.48 J/(mol K)

1 bar

12.48 J/(mol K)

300 K

1 atm

12.48 J/(mol K)

1 bar

12.48 J/(mol K)

295 K

1 atm

12.48 J/(mol K)

1 bar

12.48 J/(mol K)

285 K

1 atm

12.48 J/(mol K)

1 bar

12.48 J/(mol K)

275 K

1 atm

12.48 J/(mol K)

1 bar

12.48 J/(mol K)

270 K

1 atm

12.48 J/(mol K)

1 bar

12.48 J/(mol K)

245 K

1 atm

12.49 J/(mol K)

1 bar

12.49 J/(mol K)

220 K

1 atm

12.49 J/(mol K)

1 bar

12.49 J/(mol K)

195 K

1 atm

12.50 J/(mol K)

1 bar

12.50 J/(mol K)

176 K

1 atm

12.51 J/(mol K)

1 bar

12.51 J/(mol K)

166 K

1 atm

12.52 J/(mol K)

1 bar

12.52 J/(mol K)

156 K

1 atm

12.53 J/(mol K)

1 bar

12.53 J/(mol K)

150 K

1 atm

12.54 J/(mol K)

1 bar

12.54 J/(mol K)

140 K

1 atm

12.57 J/(mol K)

1 bar

12.57 J/(mol K)

130 K

1 atm

12.62 J/(mol K)

1 bar

12.62 J/(mol K)

120 K

1 atm

12.72 J/(mol K)

1 bar

12.72 J/(mol K)

110 K

1 atm

12.94 J/(mol K)

1 bar

12.94 J/(mol K)

liquid

87.29 K, 1 atm

20.90 J/(mol K)

87.17 K, 1 bar

20.92 J/(mol K)

86 K

1 atm

21.06 J/(mol K)

1 bar

21.06 J/(mol K)

84 K

1 atm

21.31 J/(mol K)

1 bar

21.31 J/(mol K)

Hydrogen

gas

400.0 K, 1 bar

21.02 J/(mol K)

parahydrogen

380.0 K, 1 bar

21.07 J/(mol K)

parahydrogen

360.0 K, 1 bar

21.14 J/(mol K)

parahydrogen

340.0 K, 1 bar

21.24 J/(mol K)

parahydrogen

320.0 K, 1 bar

21.39 J/(mol K)

parahydrogen

300 K, 1 bar

21.61 J/(mol K)

parahydrogen

280.0 K, 1 bar

21.92 J/(mol K)

parahydrogen

270 K, 1 bar

22.11 J/(mol K)

parahydrogen

260 K, 1 bar

22.32 J/(mol K)

parahydrogen

250 K, 1 bar

22.57 J/(mol K)

parahydrogen

240 K, 1 bar

22.84 J/(mol K)

parahydrogen

230 K, 1 bar

23.14 J/(mol K)

parahydrogen

220 K, 1 bar

23.45 J/(mol K)

parahydrogen

210 K, 1 bar

23.77 J/(mol K)

parahydrogen

200 K, 1 bar

24.08 J/(mol K)

parahydrogen

190 K, 1 bar

24.36 J/(mol K)

parahydrogen

180 K, 1 bar

24.57 J/(mol K)

parahydrogen

170 K, 1 bar

24.67 J/(mol K)

parahydrogen

160 K, 1 bar

24.62 J/(mol K)

parahydrogen

150 K, 1 bar

24.35 J/(mol K)

parahydrogen

140 K, 1 bar

23.83 J/(mol K)

parahydrogen

130 K, 1 bar

22.99 J/(mol K)

parahydrogen

120 K, 1 bar

21.84 J/(mol K)

parahydrogen

110 K, 1 bar

20.37 J/(mol K)

parahydrogen

100 K, 1 bar

18.69 J/(mol K)

parahydrogen

95 K, 1 bar

17.82 J/(mol K)

parahydrogen

90 K, 1 bar

16.95 J/(mol K)

parahydrogen

85 K, 1 bar

16.11 J/(mol K)

parahydrogen

80 K, 1 bar

15.33 J/(mol K)

parahydrogen

75.0 K, 1 bar

14.61 J/(mol K)

parahydrogen

70.0 K, 1 bar

13.99 J/(mol K)

parahydrogen

65.0 K, 1 bar

13.48 J/(mol K)

parahydrogen

62.0 K, 1 bar

13.23 J/(mol K)

parahydrogen

60.0 K, 1 bar

13.09 J/(mol K)

parahydrogen

58.0 K, 1 bar

12.96 J/(mol K)

parahydrogen

56.0 K, 1 bar

12.86 J/(mol K)

parahydrogen

54.0 K, 1 bar

12.78 J/(mol K)

parahydrogen

52.0 K, 1 bar

12.71 J/(mol K)

parahydrogen

50.0 K, 1 bar

12.65 J/(mol K)

parahydrogen

48.0 K, 1 bar

12.61 J/(mol K)

parahydrogen

46.0 K, 1 bar

12.58 J/(mol K)

parahydrogen

44.0 K, 1 bar

12.55 J/(mol K)

parahydrogen

42.0 K, 1 bar

12.53 J/(mol K)

parahydrogen

40.0 K, 1 bar

12.51 J/(mol K)

parahydrogen

38.0 K, 1 bar

12.50 J/(mol K)

parahydrogen

36.0 K, 1 bar

12.51 J/(mol K)

parahydrogen

34.0 K, 1 bar

12.52 J/(mol K)

parahydrogen

32.0 K, 1 bar

12.54 J/(mol K)

parahydrogen

30.0 K, 1 bar

12.57 J/(mol K)

parahydrogen

28.0 K, 1 bar

12.61 J/(mol K)

parahydrogen

26.0 K, 1 bar

12.68 J/(mol K)

parahydrogen

25.0 K, 1 bar

12.73 J/(mol K)

parahydrogen

liquid

20.0 K, 1 bar

11.32 J/(mol K)

parahydrogen

18.0 K, 1 bar

10.47 J/(mol K)

parahydrogen

16.0 K, 1 bar

9.68 J/(mol K)

parahydrogen

15.0 K, 1 bar

9.69 J/(mol K)

parahydrogen

14.0 K, 1 bar

10.64 J/(mol K)

parahydrogen

Mercury

323.15 K

300 MPa

24.123 J/(mol K)

250 MPa

24.099 J/(mol K)

200 MPa

24.073 J/(mol K)

150 MPa

24.046 J/(mol K)

100 MPa

24.017 J/(mol K)

50 MPa

23.985 J/(mol K)

0 MPa

23.952 J/(mol K)

318.15 K

300 MPa

24.187 J/(mol K)

250 MPa

24.163 J/(mol K)

200 MPa

24.138 J/(mol K)

150 MPa

24.110 J/(mol K)

100 MPa

24.081 J/(mol K)

50 MPa

24.050 J/(mol K)

0 MPa

24.017 J/(mol K)

313.15 K

300 MPa

24.252 J/(mol K)

250 MPa

24.228 J/(mol K)

200 MPa

24.203 J/(mol K)

150 MPa

24.175 J/(mol K)

100 MPa

24.146 J/(mol K)

50 MPa

24.116 J/(mol K)

0 MPa

24.083 J/(mol K)

308.15 K

300 MPa

24.318 J/(mol K)

250 MPa

24.294 J/(mol K)

200 MPa

24.269 J/(mol K)

150 MPa

24.242 J/(mol K)

100 MPa

24.213 J/(mol K)

50 MPa

24.182 J/(mol K)

0 MPa

24.150 J/(mol K)

303.15 K

300 MPa

24.384 J/(mol K)

250 MPa

24.361 J/(mol K)

200 MPa

24.336 J/(mol K)

150 MPa

24.309 J/(mol K)

100 MPa

24.280 J/(mol K)

50 MPa

24.250 J/(mol K)

0 MPa

24.218 J/(mol K)

298.15 K

300 MPa

24.452 J/(mol K)

250 MPa

24.429 J/(mol K)

200 MPa

24.404 J/(mol K)

150 MPa

24.377 J/(mol K)

100 MPa

24.349 J/(mol K)

50 MPa

24.318 J/(mol K)

0 MPa

24.287 J/(mol K)

293.15 K

300 MPa

24.521 J/(mol K)

250 MPa

24.498 J/(mol K)

200 MPa

24.473 J/(mol K)

150 MPa

24.446 J/(mol K)

100 MPa

24.418 J/(mol K)

50 MPa

24.388 J/(mol K)

0 MPa

24.356 J/(mol K)

Nitrogen

gas

1000 K, 1 bar

24.39 J/(mol K)

900 K, 1 bar

23.78 J/(mol K)

800 K, 1 bar

23.12 J/(mol K)

700 K, 1 bar

22.44 J/(mol K)

600 K, 1 bar

21.80 J/(mol K)

550 K, 1 bar

21.51 J/(mol K)

500 K, 1 bar

21.27 J/(mol K)

450 K, 1 bar

21.08 J/(mol K)

400 K, 1 bar

20.94 J/(mol K)

350 K, 1 bar

20.86 J/(mol K)

340 K, 1 bar

20.85 J/(mol K)

330 K, 1 bar

20.84 J/(mol K)

320 K, 1 bar

20.83 J/(mol K)

310 K, 1 bar

20.82 J/(mol K)

300 K, 1 bar

20.82 J/(mol K)

290 K, 1 bar

20.81 J/(mol K)

280 K, 1 bar

20.81 J/(mol K)

270 K, 1 bar

20.81 J/(mol K)

260 K, 1 bar

20.81 J/(mol K)

250 K, 1 bar

20.81 J/(mol K)

240 K, 1 bar

20.81 J/(mol K)

230 K, 1 bar

20.81 J/(mol K)

220 K, 1 bar

20.81 J/(mol K)

210 K, 1 bar

20.81 J/(mol K)

200 K, 1 bar

20.81 J/(mol K)

190 K, 1 bar

20.82 J/(mol K)

180 K, 1 bar

20.82 J/(mol K)

170 K, 1 bar

20.83 J/(mol K)

160 K, 1 bar

20.84 J/(mol K)

150 K, 1 bar

20.85 J/(mol K)

145 K, 1 bar

20.85 J/(mol K)

140 K, 1 bar

20.86 J/(mol K)

135 K, 1 bar

20.87 J/(mol K)

130 K, 1 bar

20.88 J/(mol K)

125 K, 1 bar

20.90 J/(mol K)

120 K, 1 bar

20.92 J/(mol K)

115 K, 1 bar

20.94 J/(mol K)

110 K, 1 bar

20.97 J/(mol K)

105 K, 1 bar

21.00 J/(mol K)

100 K, 1 bar

21.05 J/(mol K)

95 K, 1 bar

21.11 J/(mol K)

90 K, 1 bar

21.20 J/(mol K)

85 K, 1 bar

21.31 J/(mol K)

80 K, 1 bar

21.48 J/(mol K)

77.244 K, 1 bar

21.60 J/(mol K)

liquid

77.244 K, 1 bar

30.39 J/(mol K)

75 K, 1 bar

30.76 J/(mol K)

70 K, 1 bar

31.65 J/(mol K)

65 K, 1 bar

32.60 J/(mol K)

63.170 K, 1 bar

32.95 J/(mol K)

Oxygen

gas

300 K

1 atm

21.08 J/(mol K)

1 bar

21.08 J/(mol K)

295 K

1 atm

21.05 J/(mol K)

1 bar

21.05 J/(mol K)

285 K

1 atm

21.01 J/(mol K)

1 bar

21.01 J/(mol K)

275 K

1 atm

20.97 J/(mol K)

1 bar

20.97 J/(mol K)

270 K

1 atm

20.96 J/(mol K)

1 bar

20.96 J/(mol K)

250 K

1 atm

20.90 J/(mol K)

1 bar

20.90 J/(mol K)

225 K

1 atm

20.86 J/(mol K)

1 bar

20.86 J/(mol K)

200 K

1 atm

20.84 J/(mol K)

1 bar

20.84 J/(mol K)

178 K

1 atm

20.84 J/(mol K)

1 bar

20.84 J/(mol K)

168 K

1 atm

20.85 J/(mol K)

1 bar

20.85 J/(mol K)

158 K

1 atm

20.86 J/(mol K)

1 bar

20.86 J/(mol K)

148 K

1 atm

20.88 J/(mol K)

1 bar

20.88 J/(mol K)

138 K

1 atm

20.90 J/(mol K)

1 bar

20.90 J/(mol K)

128 K

1 atm

20.92 J/(mol K)

1 bar

20.92 J/(mol K)

118 K

1 atm

20.94 J/(mol K)

1 bar

20.94 J/(mol K)

108 K

1 atm

20.93 J/(mol K)

1 bar

20.92 J/(mol K)

98 K

1 atm

20.89 J/(mol K)

1 bar

20.89 J/(mol K)

94 K

1 atm

21.02 J/(mol K)

1 bar

21.01 J/(mol K)

liquid

90.19 K, 1 atm

29.72 J/(mol K)

90.06 K, 1 bar

29.74 J/(mol K)

90 K

1 atm

29.75 J/(mol K)

1 bar

29.75 J/(mol K)

82 K

1 atm

30.76 J/(mol K)

1 bar

30.76 J/(mol K)

72 K

1 atm

32.21 J/(mol K)

1 bar

32.21 J/(mol K)

62 K

1 atm

34.20 J/(mol K)

1 bar

34.20 J/(mol K)

56 K

1 atm

36.86 J/(mol K)

1 bar

36.86 J/(mol K)

54.37 K

1 atm

38.23 J/(mol K)

1 bar

38.23 J/(mol K)

References (Click the next to a value above to see complete citation information for that entry)

Holman, G. J. F., and C. A. ten Seldam. "A Critical Evaluation of the Thermophysical Properties of Mercury." Journal of Physical and Chemical Reference Data, volume 23, number 5, 1994, pp. 807–827.

Span, Roland, Eric W. Lemmon, Richard T. Jacobsen, Wolfgang Wagner, and Akimichi Yokozeki. "A Reference Equation of State for the Thermodynamic Properties of Nitrogen for Temperatures from 63.151 to 1000 K and Pressures to 2200 MPa." Journal of Physical and Chemical Reference Data, volume 29, number 6, 2000, pp. 1361–1433.

Stewart, Richard B., and Richard T. Jacobsen. "Thermodynamic Properties of Argon from the Triple Point to 1200 K with Pressures to 1000 MPa." Journal of Physical and Chemical Reference Data, volume 18, number 2, 1989, pp. 639–798.

Stewart, Richard B., Richard T. Jacobsen, and w. Wagner. "Thermodynamic Properties of Oxygen from the Triple Point to 300 K with Pressures to 80 MPa." Journal of Physical and Chemical Reference Data, volume 20, number 5, 1991, pp. 917–1021.

Younglove, B. A. "Thermophysical Properties of Fluids. I. Argon, Ethylene, Parahydrogen, Nitrogen, Nitrogen Trifluoride, and Oxygen." Journal of Physical and Chemical Reference Data, volume 11, supplement 1, 1982, pp. 1–1 to 1–353.

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