Which is/are endothermic process(es)?
(i) Dilution of sulphuric acid (ii) Sublimation of dry ice (iii) Condensation of water vapours (iv) Evaporation of water
(i) and (iii)
(ii) only
(iii) only
(ii) and (iv)
Evaporation and sublimation absorb heat. Dilution of \(H_2SO_4\) and condensation release heat (exothermic).