Question

Label the phase changes on the graph using the possible responses below.

a) Solid, Liquid, Gas, Sublimation
b) Melting, Vaporization, Condensation, Freezing
c) Deposition, Sublimation, Solid, Gas
d) Condensation, Sublimation, Freezing, Melting

Answer 1

The term for the phase change from a solid directly to a gas is 'sublimation,' and from a liquid to a gas is 'vaporization' or 'evaporation.' Molecules can change their positions in the liquid and gas phases.

Step-by-step explanation:

The student is asking to label the phase changes on a graph using given response options. To answer the student's question:

• a. The change in phase from a solid to a gas is called sublimation.
• b. The change in phase from liquid to gas is referred to as vaporization or evaporation when it occurs at the surface of a liquid at temperatures below boiling.

The correct labels for phase changes based on the provided descriptions would be:

• Sublimation for a solid to a gas transition.
• Vaporization for a liquid to gas transition, which can also involve boiling if the whole liquid is converting into a gas.

Condensation is when gas turns to liquid, and deposition is when gas turns directly into a solid without becoming a liquid first. Freezing is the process of a liquid becoming a solid. Using this information, we can deduce that molecules are capable of changing their positions in the liquid and gas phases, and therefore the answer to the last query would be 'liquid, gas'.