Which of the following are exothermic processes?
(i) Reaction of water with quicklime
(ii) Dilution of an acid
(iii) Evaporation of water
(iv) Sublimation of camphor (crystals)
Quicklime reacts vigorously with water and releases a large amount of heat along with the formation of products. Hence it is an exothermic process. Dilution of acid is also an exothermic process.