7.90. CKMMWC

CKMMWC    CKMMWC    CKMMWC    CKMMWC    CKMMWC    CKMMWC    CKMMWC    
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                              ******

SUBROUTINE CKMMWC (C, ICKWRK, RCKWRK, WTM)
Returns the mean molecular weight of the gas mixture given molar
concentrations.

INPUT
C(*)      - Real array, concentrations of the species;
            dimension at least KK, the total species count.
               cgs units, mole/cm**3
ICKWRK(*) - Integer workspace array; dimension at least LENICK.
RCKWRK(*) - Real    workspace array; dimension at least LENRCK.

OUTPUT
WTM       - Real scalar, mean molecular weight of the mixture.
               cgs units, gm/mole