Question

Solubility of gases in liquids decreases with rise in temperature because dissolution is an: 

(a) endothermic and reversible process 

(b) exothermic and reversible process 

(c) endothermic and irreversible process 

(d) exothermic and irreversible process

Answer 1

Answer is (b) exothermic and reversible process

(according to Le -Chatlier principle Solubility of gases in liquids decreases with rise in temperature)