Why does boiling point of water increase on adding NaCl to it?explain
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These charged particles alter the intermolecular forces between watermolecules. ... The water molecules need more energy to produce enough pressure to escape the boundary of the liquid. The more salt (or any solute) added to water, the more youraise the boiling point.
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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.
Since The ion-dipole interaction is stronger than the hydrogen bonding between the water molecules, so more energy is needed to move water away from the ions and into the vapor phase.
Even without a charged solute, adding particles to water raises boiling point because part of the pressure the solution exerts on the atmosphere now comes from solute particles, not just solvent (water) molecules. The water molecules need more energy to produce enough pressure to escape the boundary of the liquid. The more salt (or any solute) added to water, the more you increase the boilingpoint
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.
Since The ion-dipole interaction is stronger than the hydrogen bonding between the water molecules, so more energy is needed to move water away from the ions and into the vapor phase.
Even without a charged solute, adding particles to water raises boiling point because part of the pressure the solution exerts on the atmosphere now comes from solute particles, not just solvent (water) molecules. The water molecules need more energy to produce enough pressure to escape the boundary of the liquid. The more salt (or any solute) added to water, the more you increase the boilingpoint
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