This paper presents a complete thermodynamic and material balance analysis of the pyrolysis of chlorodifluoromethane at atmospheric pressure, using steam as a diluent in a diluent ratio range of 0-8. Reported expressions for the rate constants have been used to derive a rate equation for the above reaction as a function of the conversion and temperature. One of the reported rate constants has been corrected to bring about a good consistency between the thermodynamic and kinetic analyses.