Question

why does the kinetic energy of the molecules of a substance increase when its temperature is raised​

Answer 1

An increase in temperature increases the speed in which the gas molecules move. All gases at a given temperature have the same average kinetic energy. Answer: Because of heat the particles will moves fastly and Kinetic energy is increased so Kinetic energy of molecules in a substance depend on its temperature.

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Answer 2

Answer:

That is, the heat can be used to speed up the molecules of the substance. Since Kelvin temperature is directly proportional to the average kinetic energy of molecules in a substance, an factor increase in temperature causes an equal factor increase in the average kinetic energy of the molecules

Explanation: