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For most substances, it's the same temperature. For example, ice melts at 0°C (273K), and water freezes also at 0°C.

A few substances, such as agar, have a hysteresis. For example, agar melts at 85°C; to solidify it again, you have to cool it down to about 32-40°C.

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When a substance is melting the temperature of the substance what?

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The temperature at which a substance changes from a solid to a liquid is known as its melting point.


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Check the melting point of the substance. If the melting point is below room temperature, then the substance is liquid and if the melting point is above room temperature then it is solid.


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what the heck are you asking? the melting point is not a substance. it's a temperature in which the substance starts to melt


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