A 100 mol liquid mixture contains 50 % Benzene, 30 % Toluene and 20 % Xylene on a mole basis. On evaporation, the liquid loses 30 % Benzene, 10 % Toluene and 5 % Xylene. If a second liquid mixture containing 0.0781 kg Benzene, 0.277 kg Toluene and 1.59 kg of Xylene is added to the remaining mixture after evaporation. Compute the following. (Data: M. Wt. of Benzene, Toluene and Xylene are 78.11, 92.14 and 106.16 g/g mol, respectively) (a) The composition of the remaining liquid mixture after evaporation. (b) The composition of the liquid mixture after addition of second liquid mixture. (c) Represent the above compositions along with the initial composition on a properly labeled triangular graph paper and mark the region of composition change.

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Introduction and Basic Calculations in Multiphase Systems

Chemical calculations involve material and energy balance calculations which enable engineers to calculate material and energy requirements in various chemical processes. In addition to this, chemical calculations help to study the behavior and properties of gases, liquids, and their mixtures.