Isobaric heat capacity of natural gases. Measurements and modelling

Isobaric heat capacities of two natural gases have been measured at seven pressures from 15 MPa up to 40 MPa and in a temperature range from 303 K to 413 K. To perform these experiments, a Setaram C80 calorimeter has been used and special cells have been designed. Heat capacity values predicted by different equations of state have been compared to experimental data.