Question

Why boiling point of water increased when nacl added?

Answer 1

Answer:

Adding salt to water increases B.P.

Whenever you add non-volatile solute like , salt to a solvent like water boiling point shall increase.This is called Boiling Point Elevation.

Adding a solute increase the amount of energy (heat) needed for water to make the transition from liquid phase to gas phase.When water molecules are able to overcome v.p. or vapour pressure of air surrounding, the water gets boiled.

Adding salt(NaCl) to water(H2O), NaCl dissociates into Na and Cl ions. Every water molecule is a dipole, which means one side (the oxygen side) is more negative and the other side (the hydrogen side) is more positive.

The positively-charged sodium ions align with the oxygen side a water molecule, while the negatively-charged chlorine ions align with the hydrogen side of a water molecule.

HOPE IT HELPS:):)