Question

Explain boiling on the basis of kinetic theory of gases

Answer 1

• The intermolecular force of attraction decreases.
• The intermolecular force of attraction decreases.Intermolecular space between the molecules of liquid increases.
• The intermolecular force of attraction decreases.Intermolecular space between the molecules of liquid increases.At boiling, particles become completely free and convert into a gas/vapour.

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Answer 2

If more heat energy is supplied ,the particles eventually move fast enough to break all the attractions between them, and the liquid boils. The heat energy required to convert 1 molecule of liquid into a gas as its boiling point is called the enthalpy of vaporization or boiling point.

or

The boiling point of a substance is the temperature at which the vapour pressure of the liquid equals the pressure surrounding the liquid and the liquid changes into a vapour. The boiling point varies depending upon the surrounding environmental pressure

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