Abstract

AbstractThe chemical thermodynamic properties Cp°, ΔHf° S°, ΔGr° and Kp of gaseous perfluoro n‐alkanes, P(CF2)n F(2≤n≤10), have been calculated from 298.15 to 1000 K using the Benson method with Cp° = a″;b/T + c/T2, Cp°=a+bT+c+/T2 and Cp°=a″ + bT +cT2. Better results are obtained for Cp°=a+b/T+c/T2. The calculated chemical thermodynamic properties of C2 F6 (g) are in excellent agreement with the literature data of Stull, Westrum, and Sinke under IBM/PC microcomputer with STEP data base management system.

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