Question

According to the Kinetic Molecular Theory, temperature is directly proportional to:

• A. average kinetic energy
• B. lattice energy
• C. ionization energy
• D. free energy
• E. average potential energy

Answer 1

The correct option is A average kinetic energy

The average kinetic energy of the particles in a gas is proportional to the temperature of the gas.
Reason - As the mass of these particles is constant, if the gas is confined in a container, the particles must move faster as the gas becomes warmer (to exert pressure proportional to the increasing temperature). This increase in velocity marks the increase in kinetic energy.