*** SEVERE ERROR IN PHYSICAL PROPERTY SYSTEM
PARAMETERS OF RKS EQUATION OF STATE ARE MISSING.
OMEGA IN DATA SET 1 IS MISSING FOR R123;
A NOMINAL VALUE OF 0.29600 HAS BEEN ASSUMED.
****PROPERTY PARAMETER ERROR
ERRORS ENCOUNTERED IN CALCULATION OF VAPOR MIXTURE PROPS USING
OPTION SET SRK FOR PHIMX
! Calculations stopped because of missing property parameters