Question

What does the diagram depict?

(a) Variation in the apparent equilibrium constants of a one-substrate one-product reaction

(b) Variation in the apparent equilibrium constants of a two-substrate two-product reaction

(c) pH dependence on apparent equilibrium constant

(d) Effect of the polarity of A and B

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Question is taken from Recent Advances in division Recent Advances in Enzyme Technology of Enzyme Technology

Answer 1

The correct option is (b) Variation in the apparent equilibrium constants of a two-substrate two-product reaction

Explanation: The diagram depicts a plot which shows the variation in the apparent equilibrium constants of a two-substrate two-product reaction with the relative component composition of a biphasic aqueous-organic system. The 2 substrate 2 product reaction may be given as,

 A+B ⇋C+D

In all cases the partition coefficients are PA = 1, PB = 1 and PC = 100. The following values for the partition coefficient have been used, from the top downwards; 1, 0.1, 0.01, 0.001 and 0.0001.