Question

what happens to the kinetic energy of the particles of a substance as the substance changes from liquid to a gas

Answer 1

The kinetic energy increases when the state of a substance changes from liquid to gas . Gas has the maximum kinetic energy compared to all the states of matter.
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Answer 2

As the substance changes from liquid to gaseous state, the kinetic energy of the particles increases. As The state of the substance changes the velocity of the particle order changes as follows Solids