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[05.01] Which of the following best explains what happens when the kinetic energy of particles in a solid state increases?


They vibrate so quickly that the particles ionize and become plasma.

They vibrate so slowly that the particles are no longer held together, resulting in a gas.

They vibrate fast enough to overcome the forces of attraction holding them together and become a liquid.

They vibrate more slowly, causing the forces of attraction holding them together to increase, resulting in a liquid.

Verified Answer :

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The correct answer among the choices given is the third option. When the kinetic energy of particles on a solid state increases, the particles vibrate fast enough to overcome the forces of attraction holding them together and become a liquid. This is due to the increase in the energy of motion in each particle.

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Answer:

They vibrate fast enough to overcome the forces of attraction holding them together and become a liquid.

Explanation:

Solids are more tightly packed than liquids. Liquids particles have a higher kinetic energy. When solid particles are heated, then the kinetic energy of the solid particle increases. Now the solid particles in their rigid structure show a greater vibrational motion.

Th higher vibrational motion helps the solid particles to overcome the intermolecular forces of attraction and thereby undergo a phase change forming liquids.

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