Question

If salt is dissolved in water, state its effect on Freezing point of water.

Answer 1

Freezing point :

• The freezing point is the temperature of a liquid at which it changes its state from liquid to solid at atmospheric pressure.
• The freezing point of water is 0$°$C.
• When salt is dissolved in water, it lowers the freezing of water.
• Ice absorbs energy as it melts, but saltwater does not release energy by freezing.
• Salt molecules block water molecules from packing together when temperature is lowered.
• It then prevents them from becoming ice.
• Freezing point depression occurs when the freezing point of the liquid is lowered by addition of solute.