Why do gases always tend to be less soluble in liquids as the temperature is raised?

Explanation

The dissolution of a gas in a liquid is exothermic in nature because the gas contracts in volume.
`"Gas" + "Liquid" hArr "Dissolved gas" DeltaH=-ve`
An increase in tmperature will facour the reverse process since it is of endthermic nature. Therefore, the solubility of the gas in solution decreases with the rise in tmeperature.