Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

molybdenum


Gas Phase Heat Capacity (Shomate Equation)

Go To: Top, References, Notes

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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

Temperature (K) 4951.969 - 6000.
A 67.92850
B -40.53698
C 11.67139
D -0.819432
E -22.14035
F 600.8224
G 231.6710
H 658.9800
ReferenceChase, 1998
Comment Data last reviewed in March, 1978
Temperature
(K)
Cp
(J/mol*K)

(J/mol*K)
-(G° - H°298.15)/T
(J/mol*K)
H° - H°298.15
(kJ/mol)
4952.52.99250.0222.7134.9
5000.53.71250.5223.0137.5
5100.55.21251.6223.6142.9
5200.56.69252.7224.1148.5
5300.58.15253.8224.7154.3
5400.59.58254.9225.2160.1
5500.60.97256.0225.8166.2
5600.62.32257.1226.3172.3
5700.63.64258.2226.9178.6
5800.64.90259.3227.4185.1
5900.66.11260.4228.0191.6
6000.67.26261.6228.5198.3

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