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A change in the physical state is possible:

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When energy is introduced into or removed from the system

Only when the system is supplied with energy

Only when the system's energy is depleted

Without any energy change

answer is A.

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Detailed Solution

When energy is introduced into or removed from a system, it can cause a change in its physical state. It is because changing the magnitude of attraction forces between particles helps change matter's physical states (i.e., solid, liquid, or gas).

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