Potassium cyanide dimer


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. - 6000.
A 112.0647
B 15.20507
C -3.740296
D 0.299964
E -0.589534
F -44.41107
G 500.8457
H -8.368001
ReferenceChase, 1998
Comment Data last reviewed in March, 1966
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
298.109.6372.9373.0-0.03
300.109.7373.6373.00.19
400.113.9405.8377.311.40
500.116.4431.5385.722.92
600.118.3452.9395.134.66
700.119.8471.2404.746.56
800.121.1487.3414.158.60
900.122.2501.6423.070.77
1000.123.2514.6431.583.04
1100.124.2526.4439.695.41
1200.125.0537.2447.3107.9
1300.125.8547.2454.6120.4
1400.126.5556.6461.6133.0
1500.127.2565.4468.2145.7
1600.127.8573.6474.5158.5
1700.128.4581.3480.6171.3
1800.128.9588.7486.4184.1
1900.129.3595.7492.0197.1
2000.129.8602.3497.3210.0
2100.130.1608.7502.5223.0
2200.130.5614.7507.4236.0
2300.130.8620.5512.2249.1
2400.131.1626.1516.9262.2
2500.131.3631.5521.3275.3
2600.131.5636.6525.7288.5
2700.131.7641.6529.9301.6
2800.131.8646.4533.9314.8
2900.131.9651.0537.9328.0
3000.132.1655.5541.8341.2
3100.132.1659.8545.5354.4
3200.132.2664.0549.1367.6
3300.132.2668.1552.7380.8
3400.132.3672.0556.1394.1
3500.132.3675.9559.5407.3
3600.132.3679.6562.8420.5
3700.132.3683.2566.0433.7
3800.132.3686.7569.1447.0
3900.132.2690.2572.2460.2
4000.132.2693.5575.2473.4
4100.132.2696.8578.1486.6
4200.132.1700.0581.0499.8
4300.132.1703.1583.8513.1
4400.132.1706.1586.5526.3
4500.132.1709.1589.2539.5
4600.132.0712.0591.8552.7
4700.132.0714.8594.4565.9
4800.132.0717.6597.0579.1
4900.132.0720.3599.4592.3
5000.132.1723.0601.9605.5
5100.132.1725.6604.3618.7
5200.132.1728.2606.6631.9
5300.132.2730.7609.0645.1
5400.132.3733.2611.2658.4
5500.132.4735.6613.5671.6
5600.132.6738.0615.7684.8
5700.132.7740.3617.9698.1
5800.132.9742.6620.0711.4
5900.133.2744.9622.1724.7
6000.133.4747.1624.1738.0

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