Question

Q2) Dissolving salt in water is a change that can be reversed. Why?

Answer 1

Answer:

Consider the example, when salt is mixed with water. The salt dissolves in water forming a solution. The salt can be obtained back by the evaporation of water and water by condensation of the water vapour. Such changes which can be easily reversed are called reversible changes.

Answer 2

Answer:

Dissolving salt in water is a reversible change because salt and water can be again obtained by distillation process.