trimagnesium bis(orthophosphate)


Liquid 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) 1621. - 4500.
A 113.6000
B 6.991891×10-8
C -2.033180×10-8
D 1.983610×10-9
E 4.025631×10-8
F -946.6479
G 130.4100
H -875.5239
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)
1621.113.6185.3115.6113.0
1700.113.6190.7118.9122.0
1800.113.6197.2123.1133.4
1900.113.6203.3127.2144.7
2000.113.6209.2131.1156.1
2100.113.6214.7135.0167.4
2200.113.6220.0138.7178.8
2300.113.6225.0142.4190.2
2400.113.6229.9145.9201.5
2500.113.6234.5149.4212.9
2600.113.6239.0152.7224.2
2700.113.6243.2156.0235.6
2800.113.6247.4159.2247.0
2900.113.6251.4162.3258.3
3000.113.6255.2165.3269.7
3100.113.6258.9168.3281.0
3200.113.6262.5171.2292.4
3300.113.6266.0174.0303.8
3400.113.6269.4176.7315.1
3500.113.6272.7179.4326.5
3600.113.6275.9182.1337.8
3700.113.6279.0184.7349.2
3800.113.6282.1187.2360.6
3900.113.6285.0189.7371.9
4000.113.6287.9192.1383.3
4100.113.6290.7194.4394.6
4200.113.6293.4196.8406.0
4300.113.6296.1199.0417.4
4400.113.6298.7201.3428.7
4500.113.6301.3203.5440.1

References

Go To: Top, Liquid 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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