Application of the High Temperature Calorimeter to the Determination of the Heats of Formation of Na-Sn and Li-Sn Alloys,

Abstract

A method has been devised for using the high frequency induction coil as a high temperature calorimeter. The method enables one to determine the heat effects produced at high temperatures. The method has been applied to the determination of the heats of formation of the alloys Na-Sn and Li-Sn. The average heat of formation (delta H) determined for Na-Sn is -9.63 +/= 0.40 hilocalories per mole at 8730 K. This value becomes -10.6 +/= 0.6 kilocalories per mole when extrapolated to 298 deg K. The average heat of formation (delta H) determined for Li-Sn is -17.57 +/= 0.83 kilocalories per mole at 850 deg K. This value becomes -18.62 +/= 1.50 kilocalories per mole when extrapolated to 298 deg K. These results are compared with the results of other investigators.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1948
Accession Number
ADA315827

Entities

People

  • George R. Barber
  • Leo Brewer
  • Leroy A. Bromley
  • Raleigh L. Mckisson

Organizations

  • Oak Ridge National Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Alloys
  • Chemistry
  • Cooling
  • Crystal Structure
  • Flexible Shafts
  • Frequency
  • Heat Capacity
  • Heat Loss
  • Heat Of Reaction
  • Heat Transfer
  • Heat Transfer Coefficients
  • Measurement
  • Metals
  • Radiation
  • Spark Gaps
  • United States

Readers

  • Fluid Dynamics.
  • Molecular Photonics/Laser Physics
  • Polar and Arctic Studies