Question

Which of the following sentences are true?

• A. Solid particles have very low kinetic energy
• B. Gas particles have very high kinetic energy
• C. Kinetic energy of liquid is intermediate between solid and gases
• D. All of the above

Answer 1

The correct option is D All of the above

In a solid, the particles are held together by strong intermolecular forces between them and hence there is very little scope of movement for the particles in solid. So, kinetic energy of solid is very low.

In a gas, the particles are held together by very weak intermolecular forces between them and hence there is a very high scope of movement for the particles in gas. So, kinetic energy of gas is very high.

In a liquid, the particles are held together by intermolecular forces which are not as strong as in solid, neither as weak as in gases and hence there is a scope of movement for the particles in liquid which is not as low as solid, neither as high as gas.

So, kinetic energy of liquid is intermediate between solid and gases.

Hence the correct option is D.