lead(2+) silicate


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. to 1200.1200. to 2000.
A 10.4731028.71080
B 52.946202.189740
C -46.427890.593663
D 14.24180-0.329658
E -0.0878430.094076
F -279.0509-283.7710
G 24.5984956.78009
H -273.6599-273.6599
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1965 Data last reviewed in June, 1965
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.21.5226.2626.28-0.01
300.21.5926.4026.280.04
400.24.5933.0427.162.35
500.26.7738.7828.924.93
600.28.3643.8130.997.69
700.29.4948.2733.1510.58
800.30.2752.2635.2913.57
900.30.7955.8637.3816.63
1000.31.1559.1239.3919.73
1100.31.4262.1041.3322.86
1200.31.7064.8543.1726.01
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
1200.31.6964.8543.1726.01
1300.31.8967.3944.9429.19
1400.32.0869.7646.6332.39
1500.32.2671.9848.2435.61
1600.32.4274.0749.7938.84
1700.32.5676.0451.2842.09
1800.32.6877.9052.7145.35
1900.32.7879.6754.0848.63
2000.32.8581.3655.4051.91

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

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Copyright for NIST Standard Reference Data is governed by the Standard Reference Data Act.