Question

the process due to which a solid directly changes into gaseous state on heating , without changing first into the liquid state, and the gaseous state on cooling directly changes into solid state without changing first into the liquid state, I called​

Answer 1

Answer:

Some substances can change from the solid state to the gas state without ever becoming a liquid. During this process, known as sublimation, the sur- face particles of the solid gain enough energy to become a gas. One example of a substance that undergoes sublimation is dry ice

Explanation:

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Answer 2

Explanation:

you should called sublimation to this process