Second viscosity and thermal-conductivity virial coefficients of gases: Extension to low reduced temperature

Abstract

A recent theory of the initial density dependences of both viscosity and thermal conductivity has been extended to include lower reduced temperatures. New data on the second viscosity virial coefficients of some organic vapors are found to be in substantial agreement with the theory even at the lowest temperatures. We present in tabular form the numerical values for both transport virial coefficients in the reduced temperature range 0.5\ensuremath{\le}${T}^{\mathrm{*}}$\ensuremath{\le}100 and include values for the constituent two-monomer, three-monomer, and monomer-dimer contributions. A brief discussion of the theoretical approach and calculational methods is also given.