Matching each change of state with its description ;
- Sublimation : The process by which a solid becomes gas
- Evaporation : Vaporization that occurs at the surface of a liquid
- Freezing : The process by which a liquid becomes a solid
- Melting : The process by which a solid becomes a liquid
- Boiling : vaporization occurs below the surface of a liquid
During sublimation a solid changes directly from its solid state to its gaseous state without first changing to its liquid state. example : change of dry ice from solid to gas when exposed to air ,
Evaporation is the change of state of a liquid substance to its gaseous usually below its boiling point. this occurs at the surface of the liquid.
During freezing a liquid ( usually water ) subjected to temperatures below 0°C which changes its state from liquid water to ice ( solid )
Melting process is done by heating up a solid substance at very high temperature beyond the melting point of the substance until the solid substance changes its form to liquid.
Boiling takes place below the surface of a liquid .
Hence we can conclude that the change of state and their description are as follows Sublimation the process by which a solid becomes gas Evaporation vaporization that occurs at the surface of a liquid, Freezing The process by which a liquid becomes a solid, Melting The process by which a solid becomes a liquid, Boiling vaporization occurs below the surface of a liquid.
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