The correct options are:
- B. Sublimation is a change from solid to gas.
- C. Boiling is a change from liquid to gas.
Therefore, option B and C are correct
go through each of these phase changes and their descriptions step by step:
A. Vaporization is a change from gas to liquid.
- This statement is incorrect. Vaporization is actually a change from liquid to gas. When a substance goes from a liquid state to a gas state, it undergoes vaporization.
B. Sublimation is a change from solid to gas.
- This statement is correct. Sublimation is indeed the phase change in which a solid directly changes into a gas without passing through the liquid phase. An example of sublimation is the transition of dry ice (solid carbon dioxide) directly into carbon dioxide gas.
C. Boiling is a change from liquid to gas.
- This statement is correct. Boiling is the phase change in which a liquid changes into a gas when it reaches its boiling point. This typically involves the entire liquid mass turning into vapor as bubbles form within the liquid.
D. Condensation is a change from liquid to gas.
- This statement is incorrect. Condensation is actually the reverse of vaporization. It is the phase change in which a gas changes into a liquid. This occurs when a gas cools down and loses energy, causing its particles to come together and form a liquid.