Consider the two volatile liquids acetonitrile (CH3CN) andcarbon tetrachloride (CCl4). At a certain temperature, thesaturated vapour pressure of pure acetonitrile is 296 mmHg and thatof pure carbon tetrachloride is 331 mmHg. A binary solutioncontaining 1 mol acetonitrile and 2 mol carbon tetrachloride atthis temperature is prepared. The activity coefficient ofacetonitrile in the solution is 2.10 while that of carbontetrachloride is 1.32. Calculate the equilibrium partial pressuresof acetonitrile and of carbon tetrachloride, and the total vapourpressure above the solution, in units of mmHg.
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