Explain the following terms:(a) Melting point (b)boiling point (c)Evapouration
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(a) The temperature at which a substance starts melting is called Melting Point.
(b) The temperature at which a substance starts boiling is called boiling point.
(c) The process by which liquid evaporate without changing it's temperature.
(b) The temperature at which a substance starts boiling is called boiling point.
(c) The process by which liquid evaporate without changing it's temperature.
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a) Melting point---the temperature at which a solid state become a liquid is called its melting point.
b) boiling point --the temperature at which a starts boiling at the atmospheric pressure is known as boiling point for what it is temperature is 100° C = 373k.
c) evaporation-- evaporation is a surface phenomenon .particle from the surface gain enough energy to overcome the forces of attraction present in the liquid and change into the vapour state
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b) boiling point --the temperature at which a starts boiling at the atmospheric pressure is known as boiling point for what it is temperature is 100° C = 373k.
c) evaporation-- evaporation is a surface phenomenon .particle from the surface gain enough energy to overcome the forces of attraction present in the liquid and change into the vapour state
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