Question

heating and cooling can change the arrangement of molecules in substance and thereby its state​

Answer 1

Answer:

The term change of phase means the same thing as the term change of state. The change of phase always occurs with a change of heat. However the temperature does not change. When we heat a solid, the energy supplied is used to increase the kinetic energy of its molecules, and thereby its temperature increases.

Answer 2

Answer:

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Explanation:

When heat is added to a substance, the molecules and atoms vibrate faster. As atoms vibrate faster, the space between atoms increases. The motion and spacing of the particles determines the state of matter of the substance. The end result of increased molecular motion is that the object expands and takes up more space

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