CKCVBS    CKCVBS    CKCVBS    CKCVBS    CKCVBS    CKCVBS    CKCVBS    
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                              ******

SUBROUTINE CKCVBS (T, Y, ICKWRK, RCKWRK, CVBMS)
Returns the mean specific heat at constant volume 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
CVBMS     - Real scalar, mean specific heat at constant volume.
               cgs units, ergs/(gm*K)