3- (25/100). Activity for ethylacetate (A)-benzene (B) mixture in case of infinite dilution at a temperature of 75C the coefficients were determined as Ya 3.158 and YB 2.509. The vapor phase is considered ideal for this system the Van Laar activity coefficient model can be used. For the mixture with 20% ethyl acetate content in moles calculate the bubble pressure (bat) and vapor phase composition. InPA"(bar)=9.6830T(K)56,3209InPF"(bar)=9.3171T(K)51,2586