Is sublimation a chemical change or a physical change ?

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In a physical change the nature of substance remains same . The properties remains same.

But in case of chemical change the new kind of substance is formed, with different nature.

Sublimation is a process in which a substance changes its state from solid into vapour directly”.

So the point to note here is that the molecule and formula of the substance don’t change. Even if it changes its state.

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