during sublimation, the substance must be heated.
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Answer:
True
So that It will directly change into gas rather than coming in liquid state.
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Explanation:
Sublimation is the conversion of solid into liquid directly. This process requires heat. This is because the energy of the particles of gas is much more higher than that of solid. If the solid has to be converted into liquid we have to increase the energy of its particles by providing extra energy in the form of heat.
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