Calorimetric Measurement of Latent Heats of Vaporization of Propane and Normal Pentane and Some Thermodynamic Properties of Normal Pentane

Measurements of the latent heat of vaporization of propane and normal pentane were made with an adiabatic bomb calorimeter. The temperature range for propane was from 103.4° F. to 163.2° F. Normal pentane measurements were from 103.7 to 200° Fahrenheit. A description of the apparatus and the method of calculation will be found in part 1 of this paper. In the second section of this paper some of the thermodynamic properties of n-pentane in the superheated gas region were calculated. Included in this section are tabulated values of entropy, enthalpy, residual volume, and heat capacity.