Evaporation that occurs directly from the solid phase below the melting point is called as:

Sublimation

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condensation

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distillation

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None of above

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Solution

The correct option is A Sublimation
Evaporation occurs directly from the solid phase below the melting point, as commonly observed with the Sublimation of ammonium chloride.

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Similar questions

Write true or false for each statement :

(a) The temperature of a substance remains unaffected during its change of state.

(b) Ice melts at $100^{\circ} C .$

(d) Evaporation of a liquid causes cooling.

(e) Water evaporates only at $100^{\circ} C .$

(f) Boiling takes place over the entire mass of the liquid.

(g) Evaporation takes place over the entire mass of the liqid.

(h) The process of a gas converting directly into solid is called vaporization.

(i) At high altitudes, water boils above $100^{\circ} C .$

(j) The melting point of ice is $0^{\circ} C$

What is the name of the phase transition that occurs when a solid is converted directly into a gas (without going through the liquid phase)?

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