Question

What is represented in the following plot?

(a) Effect of the polarity of A and B

(b) Variation in the apparent equilibrium constants

(c) Effect of the ratio of the partition coefficients

(d) pH dependence on the apparent equilibrium constant

I have been asked this question in a national level competition.

My question is from Recent Advances topic in section Recent Advances in Enzyme Technology of Enzyme Technology

Answer 1

Correct choice is (a) Effect of the polarity of A and B

To explain I would say: The plot represents the effect of polarity he polarity of A and B, keeping the ratio of the partition coefficients constant (PB/PA = 100). This plot is drawn considering the variation in the apparent equilibrium constants of a one-substrate one-product reaction with the relative component composition of a biphasic aqueous-organic system. The following values for the partition coefficients have been used, from the top downwards; PB = 100, PB = 10, PB = 1, PB = 0.1, PB = 0.01, PB = 0.001, PB = 0.0001.