558 MASS-TRANSFER OPERATIONS 2439 (1952), in weight percent are: 10.1 Plot the equilibrium data on the following coordinate systems: (a) triangular; (b) x and y against weight fraction B;(c)x against y. 10.2 Compute the selectivity of chlorobenzene for pyridine at each tic line, and plot selectivity against concentration of pyridine in water. 103 It is desired to reduce the pyridine concentration of 2000kg of an aqueous solution from 50 to 2% in a single batch extraction with chlorobenzene. What amount of solvent is required? Solve on triangular coordinates