Excess volumes, excess isentropic compressibilities, and excess viscosities have been reported for the binary liquid mixtures of cyclohexene with n-hexane, cyclohexane, benzene, trichloromethane, tetrachloromethane, and 1,4-dioxane at 303.15 K. VE results are negative for mixtures of cyclohexene with n-hexane and tetrachloromethane and are positive for the remaining systems. [Formula: see text] values are negative for mixtures of cyclohexene with n-hexane and positive for all other systems. The data of Δ ln η are positive for cyclohexene with cyclohexane and tetrachloromethane, and negative for the remaining systems. Prigogine–Patterson–Flory equation of state theory has been applied to predict excess volumes and excess enthalpies, and the viscosity relations proposed by Bloomfield are used to calculate free energy and free volume contributions to excess viscosity. Keywords: excess volumes, excess isentropic compressibilities, excess viscosities.
