Which of the following phase changes does not involve a solid?
melting
sublimation
none, they all involve a solid
Answer:
evaporation involves only liquids and gases, melting can involve a solid, sublimation involves solids and gases...
so think that is right...
Evaporation = liquid -> gas
Melting = solid -> liquid
Sublimation = solid -> gas
so... Evaporation is correct.
.
None, they all involve a solid as ALL substances have a Vapour Pressure at any SPECIFIC Temperature.
e.g. Solid CO2 (Dry Ice), at -80°C will change directly to gas by sublimation (evaporation).
Evaporation: Liquid ---> Vapor
Melting: Solid ---> Liquid
Sublimation: Solid ---> Vapor
The answer is Evaporation.
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