On the basis of kinetic theory explain why, ammonium chloride sublimes and goes from solid state directly into vapour state.

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Solution

Ammonium chloride decomposes on heating.
$N H_{4} C l_{(G)} ⟶ N H_{3 (g)} + H C l_{(g)}$
The solid particles are heated and are filled with energy. This energy is outforced. Hence it sublines. Since, ammonium chloride has stong inter-molecular forces of attraction, it doesn't need any external source of heat for its' sublimation.

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