tantalum

• Formula: Ta
• Molecular weight: 180.94788
• IUPAC Standard InChI: InChI=1S/Ta Copy

  
• IUPAC Standard InChIKey: GUVRBAGPIYLISA-UHFFFAOYSA-N Copy
• CAS Registry Number: 7440-25-7
• Chemical structure:
  This structure is also available as a 2d Mol file
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• Information on this page:
  • Solid Phase Heat Capacity (Shomate Equation)
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Reaction thermochemistry data
  • Gas phase ion energetics data
  • Ion clustering data
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  • NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
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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.

C_p° = 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
    C_p = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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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

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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