tungsten


Condensed phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Quantity Value Units Method Reference Comment
Deltafliquid11.21kcal/molReviewChase, 1998Data last reviewed in June, 1966
Quantity Value Units Method Reference Comment
liquid,1 bar10.92cal/mol*KReviewChase, 1998Data last reviewed in June, 1966
Quantity Value Units Method Reference Comment
solid7.806cal/mol*KReviewChase, 1998Data last reviewed in June, 1966

Liquid Phase Heat Capacity (Shomate Equation)

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) 3680. - 6000.
A 8.500010
B -3.708750×10-8
C 6.967620×10-9
D -4.521329×10-10
E -9.817642×10-8
F 5.474240
G 17.25280
H 11.20840
ReferenceChase, 1998
Comment Data last reviewed in June, 1966

Solid Phase Heat Capacity (Shomate Equation)

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. - 1900.1900. - 3680.
A 5.726411-5.395890
B 0.63089921.57739
C 0.300610-10.58114
D -0.0608611.715256
E -0.011570-5.759417
F -1.776590-2.384974
G 14.47010-3.404566
H 0.0000000.000000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in June, 1966 Data last reviewed in June, 1966

References

Go To: Top, Condensed phase thermochemistry data, 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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