State three characteristic features of boiling.
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State three characteristic features of boiling.
(a) The vapour pressure must be equal to the atmospheric pressure. Bubbles of the vapour are formed at boiling.
(b)(i) Addition of crystals of sodium chloride will increase the boiling point of water.
(c) Boiling accurs at a constant temperature while evaporation occurs at every given point of temperature rise.
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Boiling is the rapid vaporization of a liquid, which occurs when a liquid is heated to its boiling point, the temperature at which the vapour pressure of the liquid is equal to the pressure exerted on the liquid by the surrounding atmosphere.
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