Thermodynamic Properties of Hydrogen in Benzene Solutions

Abstract

Partial molal enthalpies, entropies, and internal energies are reported for hydrogen in liquid‐benzene solutions at temperatures up to 250°C, pressures up to 150 atm, and hydrogen concentrations up to 13 mole %. Both the cohesive energy density ratio a₁₂/a₁₁ and the pressure at which the entropy of mixing becomes ideal, turn out to be roughly independent of temperature and hydrocarbon type.