Question

The value of Henry’s law constant increases with increasing temperature?

(a) True

(b) False

I got this question in homework.

My question is based upon Estimating Oxygen Solubility topic in division Mass Transfer of Bioprocess Engineering

Answer 1

The correct choice is (a) True

To explain I would say: The value of the Henry’s law constant is found to be temperature dependent. The value generally increases with increasing temperature. As a consequence, the solubility of gases generally decreases with increasing temperature. The decrease in solubility of gases with increasing temperature is an example of the operation of Le Chatelier’s Principle. The heat or enthalpy change of the dissolution reaction of most gases is negative, which is to say the reaction is exothermic. As a consequence, increasing the temperature leads to gas evolution.