CKUBMS    CKUBMS    CKUBMS    CKUBMS    CKUBMS    CKUBMS    CKUBMS    
          **********************************************
                    **************************
                              ******

SUBROUTINE CKUBMS (T, Y, ICKWRK, RCKWRK, UBMS)
Returns the mean internal energy of the mixture in mass units.

INPUT
T(*)      - Real array, temperature(s); dimension is determined by
            the application program to be the total number of
            species temperatures, nominally 1.
               cgs units, K
Y(*)      - Real array, mass fractions of the mixture;
            dimension at least KK, the total species count.
ICKWRK(*) - Integer workspace array; dimension at least LENICK.
RCKWRK(*) - Real    workspace array; dimension at least LENRCK.

OUTPUT
UBMS      - Real scalar, mean internal energy.
               cgs units, ergs/gm