Isothermal vapor-liquid equilibrium (VLE) data at 353.15 K and excess molar volumes (VE) at 298.15 K are reported for the binary systems of ethyl acetate (EA) + cyclohexane and EA + n-hexane and also for the ternary systems of EA + cyclohexane + 2-methyl pyrazine (2MP) and EA + n-hexane + 2MP. The experimental binary VLE data were correlated with common g(E) model equations. The correlated Wilson parameters of the constituent binary systems were used to calculate the phase behavior of the ternary mixtures. The calculated ternary VLE data using Wilson parameters were compared with experimental ternary data. The experimental excess molar volumes were correlated with the Redlich-Kister equation for the binary mixtures, and Cibulka's equation for the ternary mixtures.