Question

For the T-C relation in phenol, there happens a regular sharpening in concentration of phenol. What will happen if the equilibrium conditions are varied at a particular point?

(a) The curve remains unchanged

(b) The curve decreases

(c) The curve increases

(d) The curve inverts

I have been asked this question in an internship interview.

My question is taken from Uses and Limitations of Phase Rule in portion Phase Rule of Engineering Chemistry I

Answer 1

The correct option is (c) The curve increases

The best I can explain: We know that both the equilibrium points are achieved at the same concentration and hence there is a regular increase. If the equilibrium conditions are varied, then the steadiness vanishes and hence the curve will show an abnormal increase in its concentration.