A new generalized correlation tor the estimation of heat capacities of liquid organic compounds has been developed. It is applicable to many types ot organic compounds including the strong polar and associated compounds and to the temperature range from the reduced melting point Tm

to the reduced temperature of 0.95. The heat capacities of 103 compounds

have been calculated with this method and compound with data of 1567 points

and an absolute average deviation of 3% has been obtained for all types of compounds except acids for which it has been shown to be 5%. The results are better than those of published methods.