Question

According to kinetic theory of gases, molecular kinetic energy increases when:

• A. mixed with other molecules at low temperature.
• B. frozen into solid.
• C. condensed into liquid.
• D. melted from solid to liquid state.

Answer 1

The correct option is D melted from solid to liquid state.

Molecular kinetic energy is maximum in gases and least in solids. Hence, a substance is melted from solid to liquid state, its kinetic energy increases.