Question

Which of the following is the correct expression of Henry’s law?

(a) CA = \(\frac{p_A}{H_A} \)

(b) HA = \(\frac{C_A}{p_A} \)

(c) pA = \(\frac{C_A}{H_A} \)

(d) CA = \(\frac{H_A}{p_A} \)

This question was posed to me in unit test.

My question is taken from Design of Fluid Fluid Reactors in chapter Fluid-Fluid Reactions: Kinetics & Basics of Non Ideal Flow of Chemical Reaction Engineering

Answer 1

The correct option is (a) CA = \(\frac{p_A}{H_A} \)

To explain I would say: Henry’s law states that at a constant temperature, the gas dissolving in a given volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid. HA is Henry’s law constant.