Question

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

Answer 1

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.

Answer 2

$\huge\star{\underline{\underline{\tt{\green{\mid{Answer}}}}}}\star$

$\large\star{\underline{\mathfrak{\red{Explanation:}}}}$

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Kinetic Energy is Directly Proportional to Pressure......(1)

Also We Know That,

Pressure is directly proportional to Temperature.....(2)

From 1 and 2

★Kinetic energy directly proportional to Temperature

$\large{\green{\tt{\underline{Example}}}}$

$\large\implies$When we Increase the temperature of a room,the particles have a high pressure on them them which is increasing rapidly wih increasing temp.

$\large\implies$Here the particles' speed is increasing rapidly i.e the Kinetic Energy of the particles will increase too.(Kinetic Energy=1/2mv²)

From this example we will know that Kinetic Energy is directly proportional to Temperature

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