Magnesium monohydride


Gas Phase Heat Capacity (Shomate Equation)

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 1200.1200. to 6000.
A 19.5117139.71566
B 32.34282-1.024759
C -21.960640.417702
D 5.602962-0.011593
E 0.198716-3.746781
F 162.6292149.1387
G 209.2155231.3216
H 169.0340169.0340
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1966 Data last reviewed in December, 1966
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.29.59193.2193.2-0.00
300.29.60193.4193.20.06
400.30.54202.0194.43.06
500.31.69209.0196.66.17
600.32.77214.8199.29.39
700.33.72220.0201.812.72
800.34.51224.5204.316.13
900.35.16228.6206.819.62
1000.35.70232.3209.223.16
1100.36.14235.8211.426.75
1200.36.52238.9213.630.39
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
1200.36.47238.9213.630.38
1300.36.85241.9215.734.05
1400.37.16244.6217.637.75
1500.37.41247.2219.541.48
1600.37.63249.6221.345.23
1700.37.83251.9223.149.00
1800.38.00254.1224.752.80
1900.38.16256.1226.356.60
2000.38.31258.1227.960.43
2100.38.45259.9229.364.27
2200.38.59261.7230.868.12
2300.38.72263.5232.271.98
2400.38.85265.1233.575.86
2500.38.98266.7234.879.75
2600.39.12268.2236.183.66
2700.39.25269.7237.387.58
2800.39.39271.1238.591.51
2900.39.53272.5239.695.45
3000.39.67273.9240.799.41
3100.39.82275.2241.8103.4
3200.39.97276.4242.9107.4
3300.40.12277.7243.9111.4
3400.40.28278.9244.9115.4
3500.40.44280.0245.9119.4
3600.40.61281.2246.9123.5
3700.40.78282.3247.8127.6
3800.40.96283.4248.7131.6
3900.41.14284.4249.6135.8
4000.41.32285.5250.5139.9
4100.41.51286.5251.4144.0
4200.41.71287.5252.2148.2
4300.41.91288.5253.1152.4
4400.42.11289.5253.9156.6
4500.42.32290.4254.7160.8
4600.42.53291.3255.5165.0
4700.42.75292.3256.2169.3
4800.42.98293.2257.0173.6
4900.43.20294.1257.8177.9
5000.43.44294.9258.5182.2
5100.43.67295.8259.2186.6
5200.43.91296.6259.9191.0
5300.44.16297.5260.6195.4
5400.44.41298.3261.3199.8
5500.44.66299.1262.0204.2
5600.44.92299.9262.7208.7
5700.45.18300.7263.3213.2
5800.45.45301.5264.0217.8
5900.45.72302.3264.6222.3
6000.46.00303.1265.3226.9

References

Go To: Top, Gas Phase Heat Capacity (Shomate Equation), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]


Notes

Go To: Top, Gas Phase Heat Capacity (Shomate Equation), References