Question 12 Which of the following is (are) an endothermic process(es)?
(i) Dilution of sulphuric acid. (ii) Sublimation of dry ice. (iii) Condensation of water vapours. (iv) Evaporation of water. (a) (i) and (iii) (b) (ii) only (c) (iii) only (d) (ii) and (iv)
Question 4 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) (a) (i) and (ii) (b) (ii) and (iii) (c) (i) and (iv) (d) (iii) and (iv)