Question

Explain how entropy changes in the following processes? (a) freezing of liquid (b) sublimation of solid (c) dissolving of sugar in water (d) condensation of vapour

Answer 1

Explanation:

a)freezing of liquid- liquid state is converted in solid hence disordered state converted into ordered state ,entropy decrease

b.sublimation of solid- solid state is directly converted into vapour state

ordered state is converted into highly disordered state ,entropy increase

c) dissolving sugar in water- solid is converted into liquid ordered state is converted into disordered state, entropy increase

d) condensation of vapour - vapour is converted into liquid highly disordered state is converted into disordered state, entropy decrease

Answer 2

Answer:

Freezing of a liquid results in decrease in randomness and disorder, hence entropy decreases, ΔS>0 . ...

option is A right