Solutions and Colligative PropertieshardMCQ SINGLE⭐ Must-Do

According to Henry's Law, what happens to the value of the Henry's law constant () and the resultingSolutions and Colligative Properties Chemistry Question

Question

According to Henry's Law, what happens to the value of the Henry's law constant ($K_H$) and the resulting solubility of a gas when the temperature of the liquid is increased at a constant pressure?

Answer: A

💡 Solution & Explanation

Dissolution of gas is exothermic. Heating shifts the equilibrium backward, decreasing gas solubility ($\chi$). Since $P = K_H \times \chi$, to maintain constant $P$ while $\chi$ drops, $K_H$ must increase. Thus, $K_H \propto T$.

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