Question

Why does a salt disappear when dissolved in water?

Answer 1

Dissolution of salt in water:

• When salt is added to water the particles of salt entering the water get separated due to a decrease in the interparticle force of attraction and get fitted into the interparticle space of water molecules.
• The interparticle space between the water particles is more as compared to salt.
• Salt also contains ions.
• Water helps in separating these ions by decreasing the interionic forces allowing the salt to disperse throughout the water.
• So, the particles of salt occupy the spaces in between the particles of water and hence get dissolved.