Question

define linear expansion​

Answer 1

Answer:

Linear expansion is also known as Thermal expansion. Thermal expansion is the tendency of matter to change its shape, area, volume, and density in response to a change in temperature, usually not including phase transitions. Temperature is a monotonic function of the average molecular kinetic energy of a substance.

Answer 2

Answer:

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The linear expansion coefficient is an intrinsic property of every material. Hence it varies from one material to another