Which phase change temperatures are identical on the phase diagram? Select all that apply.melting point - boiling pointfreezing point - melting pointboiling point - condensation pointcondensation point - melting point

To determine which phase change temperatures are identical on the phase diagram, we need to compare the different temperature points. Let's go through each option:

1. Melting point - Boiling point: These two temperatures are not identical on the phase diagram. The melting point is the temperature at which a substance changes from a solid to a liquid, while the boiling point is the temperature at which a substance changes from a liquid to a gas.

2. Freezing point - Melting point: These two temperatures can be identical on the phase diagram. The freezing point is the temperature at which a substance changes from a liquid to a solid, and the melting point is the temperature at which a substance changes from a solid to a liquid. In some cases, the freezing point and melting point can be the same temperature.

3. Boiling point - Condensation point: These two temperatures are not identical on the phase diagram. The boiling point is the temperature at which a substance changes from a liquid to a gas, while the condensation point is the temperature at which a substance changes from a gas to a liquid.

4. Condensation point - Melting point: These two temperatures can be identical on the phase diagram. The condensation point is the temperature at which a substance changes from a gas to a liquid, and the melting point is the temperature at which a substance changes from a solid to a liquid. In some cases, the condensation point and melting point can be the same temperature.

Based on the above analysis, the phase change temperatures that can be identical on the phase diagram are:

• Freezing point - Melting point
• Condensation point - Melting point