Question:
Why do gases always tend to be less soluble in liquids as the temperature is raised?
Answer:
Dissolution of gas in a liquid is an exothermic reaction, in which a small quantity of heat is produced
Gas + liquid ↔ solution + heat
According to Le Chateliers principle with increasing the temperature in an exothermic reaction, the reaction will move to reverse or backwards direction that means the solution will dissociate into gas. Hence with the rise of temperature gas will less soluble.
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