Question

explain thermal expansion ​

Answer 1

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➠Thermal expansion is the tendency of matter to change its shape, area, and volume in response to a change in temperature.

➠Temperature is a monotonic function of the average molecular kinetic energy of a substance. When a substance is heated, the kinetic energy of its molecules increases.

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Answer 2

Answer:

thermal expansion is the tendency of matter to change its shape , area and volume in response to a change in temperature the relative expansion dived by the change in temperature is called the materials coefficient of thermal expansion and generally varies with temperature.

Explanation:

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