Question

Define Thermal Expansion____!​

Answer 1

Answer:

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

☆ 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.

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★ Temperature is a monotonic function of the average molecular kinetic energy of a substance.

Examples :-

• Thermal expansion of long continuous sections of rail tracks is the driving force for rail buckling.

★ Thermal expansion is also used in mechanical applications to fit parts over one another.

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