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As the temperature of a substance increases, the kinetic energy of the molecules _____________ and they begin to move ______________.

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Answer:

The correct answer is "increase; faster".

Step-by-step explanation:

The kinetic energy is defined as the power that an object has result of its movement. The kinetic energy of a substance has a direct relation with the temperature. As the temperature rises, the kinetic energy of the molecules increases, result of an increase in the speed of its movement. A higher temperature causes that the particles vibrate faster, which increases the kinetic energy.

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