Final answer:
Evaporation is the correct term for the change of state represented in the diagram. It is an endothermic process where a liquid turns into a gas.
Step-by-step explanation:
The correct term for the change of state represented in the diagram is evaporation. Evaporation occurs when a liquid turns into a gas. It is an endothermic process that requires the addition of heat to break the intermolecular interactions between molecules. The opposite of evaporation is condensation, where gas molecules come together to form a liquid.