The process by which molecules escape from a solid directly into the gas phase is called

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Multiple Choice

The process by which molecules escape from a solid directly into the gas phase is called

Explanation:
This is sublimation. It describes a phase transition where a solid becomes a gas without first melting into a liquid. Molecules in the solid gain enough energy (or the surrounding pressure is low enough) that they overcome the solid’s lattice bonds and escape directly into the gas phase. This differs from evaporation, which is liquid-to-gas at the surface; condensation, gas-to-liquid; and deposition, gas-to-solid. A classic example is dry ice turning into carbon dioxide gas at room temperature.

This is sublimation. It describes a phase transition where a solid becomes a gas without first melting into a liquid. Molecules in the solid gain enough energy (or the surrounding pressure is low enough) that they overcome the solid’s lattice bonds and escape directly into the gas phase. This differs from evaporation, which is liquid-to-gas at the surface; condensation, gas-to-liquid; and deposition, gas-to-solid. A classic example is dry ice turning into carbon dioxide gas at room temperature.

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