SUBROUTINE MCATDR (T, X, IMCWRK, RMCWRK, TDR)

This subroutine computes the thermal diffusion ratios for the light species into the mixture.

SUBROUTINE MCMCDT (P, T, X, IMCWRK, RMCWRK, ICKWRK, CKWRK, DT, COND)

This subroutine computes the thermal diffusion coefficients, and mixture thermal conductivities given the pressure, temperature, and mole fractions.