Chemistry
What is inter-conversion of matter. Give the meaning of the terms involved in inter-conversion of matter -
(a) Melting
(b) Vaporisation
(c) Liquefaction or condensation
(d) Solidification or freezing
(e) Sublimation
Matter
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Answer
Change of state of matter from one state to another and back to its original state is called interconversion of matter. This is brought about by change in temperature, pressure.
(a) Melting — It is the conversion of a solid into a liquid on heating. e.g., ice to water
(b) Vaporisation — It is the conversion of a liquid into a gas on heating. e.g., water to water vapour.
(c) Liquefaction or condensation — It is the conversion of vapour into a liquid. e.g., water vapour to water.
(d) Solidification or freezing — It is the conversion of a liquid into a solid. e.g., water to ice.
(e) Sublimation — It is the conversion of a solid directly into a gaseous [vapour] state and on cooling directly back to solid state without changing into liquid state. e.g. naphthalene sublimes at room temperature.
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(d) A liquid into a solid
With special reference to inter-particle space & inter-particle attraction at the different stages of conversion.