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iron difluoride


Solid 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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 1373.
A 14.70710
B 9.529221
C -5.711191
D 1.172511
E -0.071081
F -173.7010
G 35.58241
H -168.7000
ReferenceChase, 1998
Comment Data last reviewed in September, 1965
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.16.2720.7720.79-0.00
300.16.2920.8820.790.03
400.17.2425.7121.441.71
500.17.9129.6322.703.47
600.18.4232.9424.145.28
700.18.8435.8125.607.15
800.19.1638.3527.049.05
900.19.4240.6228.4310.98
1000.19.6342.6829.7512.93
1100.19.7844.5631.0114.90
1200.19.8946.2932.2216.89
1300.19.9847.8833.3618.88

References

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