Question

KH values for the gases argon and methane in water at 298K are 40.3 /k bar and

0.413 / k bar respectively. Which gas is more soluble at this temperature?​

Answer 1

Answer:

Methane has higher solubility

Explanation:

Lower is KH value, higher is solubility.

Answer 2

Methane gas is more soluble at this temperature.

When the temperature is held constant, Henry's law says that the amount of gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid. The solubility of a gas in a liquid is exactly proportional to its pressure, according to Henry's law.

P ∝ X

We convert this to  $K_{H}$ to modify the proportionality constant.

$K_{H} X$ =  $P$

P refers to the partial pressure of a gas.

X denotes the solubility of a gas in a liquid.

Henry's constant is $K_{H}$

Only the nature of the gas, the composition of the liquid, and the temperature affect $K_{H}$ (T). As the temperature rises, '$K_{H}$' rises while X falls.