Does the temperature of a substance change while it changes its state ? Explain why or why not.
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24
Answer:
During change of state (from solid to liquid, gas to liquid, etc.) the heat energy that is supplied to the substance is used for the change of state and not to increase the kinetic energy of the molecules (that contributes to the temperature of the substance), so the temperature remains constant.
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9
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Explanation:
Hey mate here is your answer:
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→The temperature of a substance is related to the speed of the substance's particles. So, when the temperature of a substance changes, the speed of the particles also changes. But the temperature of a substance does not change until the change of state is complete.
→The heat is used to break the bonds between the ice molecules as they turn into a liquid phase. Since the average kinetic energy of the molecules does not change at the moment of melting, the temperature of the molecules does not change.
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Hope it helps you.
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