The heat content of PuC above 298deg;K was measured with an isothermal drop calorimeter. No discontinuities were observed in the heathyphen;contenthyphen;vshyphen;temperature curve, which is described by the equationHTminus;H298equals;minus;5035plus;13.08Tplus;5.718times;10minus;4T2plus;3.232times;105Tminus;1.The equation for the heat capacityCPequals;13.08plus;11.44times;10minus;4Tminus;3.232times;105Tminus;2was derived from the calculated enthalpy equation. Values of the change in enthalpy, heat capacity, and entropy increments are given up to the melting point of PuC. Corrections of the enthalpy data for the selfhyphen;heating of plutonium and the defect structure of PuC are described.
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