Which process describes a liquid changing to gas throughout the liquid at its boiling point?

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Multiple Choice

Which process describes a liquid changing to gas throughout the liquid at its boiling point?

Explanation:
Boiling is the phase change where a liquid becomes a gas throughout the entire liquid once it reaches its boiling point. At that temperature, vapor bubbles form inside the liquid and rise to the surface, so the transformation isn’t limited to the surface but happens throughout the body of the liquid. The added heat goes into breaking intermolecular forces to turn liquid into gas, rather than just warming the liquid. This distinguishes boiling from evaporation, which is a surface process that can occur at temperatures below the boiling point; sublimation is solid to gas, and melting is solid to liquid.

Boiling is the phase change where a liquid becomes a gas throughout the entire liquid once it reaches its boiling point. At that temperature, vapor bubbles form inside the liquid and rise to the surface, so the transformation isn’t limited to the surface but happens throughout the body of the liquid. The added heat goes into breaking intermolecular forces to turn liquid into gas, rather than just warming the liquid. This distinguishes boiling from evaporation, which is a surface process that can occur at temperatures below the boiling point; sublimation is solid to gas, and melting is solid to liquid.

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