The Use of The Method of Thermodynamics Similarity to Describe some of Thermo Characters Using the Law of Corresponding States

This Research aims to study the heat capacity for some organic liquids depending on the law of corresponding states , using some analytic equations which are related with the reduced temperatures and the parameter of similarity in ranges of temperatures below the critical temperature . Then to conclude the heat capacity with a constant pressure and compare the results with values of the heat capacity in other works which have been obtained using different methods , theoretical or experimental.