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Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice QuestionsQuestion 12
Class 10 - Science - CHAPTER 1: Chemical Reactions and Equations - Multiple Choice Questions
Question. 12
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
(a)
(i) and (iii)
(b)
(ii) only
(c)
(iii) only
(d)
(ii) and (iv)
Detailed Answer with Explanation:
Evaporation and sublimation absorb heat. Dilution of \(H_2SO_4\) and condensation release heat (exothermic).