trimagnesium bis(orthophosphate)


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. - 1621.
A 26.82739
B 85.75810
C -30.80581
D 1.400891
E 0.110854
F -906.2560
G 53.93200
H -895.1011
ReferenceChase, 1998
Comment Data last reviewed in March, 1963
Temperature
(K)
Cp
(cal/mol*K)

(cal/mol*K)
-(G° - H°298.15)/T
(cal/mol*K)
H° - H°298.15
(kcal/mol)
298.50.9345.0345.010.01
300.51.0545.3745.010.11
400.56.9860.8747.095.51
500.62.6274.2051.2111.50
600.67.8086.0856.0518.02
700.72.4796.8961.1225.04
800.76.61106.866.2332.50
900.80.22116.171.2640.34
1000.83.29124.776.1848.52
1100.85.84132.880.9656.98
1200.87.87140.385.5965.67
1300.89.39147.490.0874.54
1400.90.41154.194.4283.54
1500.90.93160.398.6092.61
1600.90.96166.2102.6101.7

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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