Question

Name the process of changing solid directly into vapour.

Answer 1

the process in which soild directly changes into liquid is known as Sublimation

Answer 2

Hey mate here is your answer:-)

The process is called sublimation. In general matter has particles bound together by inter molecular and intra-molecular forces. These forces help keep the matter bulky, hard and stable. When we provide heat energy to this matter, the forces of attraction are overcome due to vibrations of atoms in the molecules leading loss if stability and hardness. The molecules tend to arrange themselves in loose fashion such that they start flowing like a liquid without any shape.

On providing further energy, these molecules begin to vibrate with greater intensity than before and tend to move apart from each other. They exist as gas which have loosely bound molecules. These molecules are free to move and try to occupy the open space as much as possible.

Hope this helps you.............

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