Question

what do you mean by thermal expansion of Gas​

Answer 1

Answer:

Thermal expansion is the increase, or decrease, of the size (length, area, or volume) of a body due to a change in temperature. Thermal expansion is large for gases, and relatively small, but not negligible, for liquids and solids. ... Thermal stress is created when thermal expansion is constrained.

Explanation:

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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 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.