Match the following vocabulary
part a
1. the change from a liquid state to a gaseous state
2. the change from a gaseous state to a liquid state
3. the change from a solid state to a liquid state
4. the change from a liquid state to a solid
5. the change from a solid state to a gaseous state
6. the change from a gaseous state to so solid
7. a change of state
part b
a. boiling
b. deposition
c. phase change
d. sublimation
e. condensation
f. melting
g. freezing

1. The change from a liquid state to a gaseous state = a. boiling

2. The change from a gaseous state to a liquid state = e. condensation

3. The change from a solid state to a liquid state = f. melting

4. The change from a liquid state to a solid = g. freezing

5. The change from a solid state to a gaseous state = d. sublimation

6. The change from a gaseous state to so solid = b. deposition

7. A change of state = c. phase change

Explanation:

State changes

The balance between attractive and repulsive forces between the particles that make up a substance determines that the substance is in one state or another.

By conveniently modifying the pressure and temperature, a substance can be obtained from one state of aggregation to another.

Fusion: is the passage of a substance from the solid state to the liquid state. The reverse process, that is, the passage of a substance from the liquid state to the solid state is called Solidification.

Vaporization: is the passage of a substance from the liquid state to the gas state. This can occur in two possible ways: evaporation and boiling.

Evaporation: it is a slow vaporization that occurs only on the surface free of liquids and at any temperature. Example: in a puddle at room temperature.

The boil: is a tumultuous vaporization that is carried out throughout the mass of the liquid. For a given pressure, each liquid has a boiling temperature.

The reverse process, that is, the passage of a substance from the gas state to the liquid state is called Liquification or condensation. Energy detachment is performed by heat.

Sublimation: is the passage of a substance from the solid state to the gas state. The reverse process, that is, the passage of a substance from the gas state to the solid state is called regressive sublimation.

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your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.