What do scientists mean when they use the term, phase change? justify your response in two or more complete sentences

Phase changes happen when you reach certain special points. Sometimes a liquid wants to become a solid. Scientists use something called a freezing point or melting point to measure the temperature at which a liquid turns into a solid. There are physical effects that can change the melting point.

Explanation:

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When scientists mention the words "phase change" they mean:

Explanation:

The phase changes refer to the different changes that a substance undergoes through the states of matter and reflects the physical characteristics that said state contracts (only physical characteristics since the chemical characteristics do not change).

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.