Question

The average Kinetic energy of the molecules of a gas is directly proportional to the _____ temperature

Answer 1

Explanation:

1. Kinetic energy is given by the equation $K=\frac{1}{2}m{v}^2$
2. As temperature increases, the velocity of particle increases; as the square of velocity is directly proportional to the kinetic energy of the gas, kinetic energy also increases.
3. So, the kinetic energy of a molecule of a gas is directly proportional to the absolute temperature of the gas.
4. An increase in temperature increases the speed at which the gas molecules move, i.e., increases the kinetic energy.
5. A decrease in temperature decreases the speed at which the gas molecules move, i.e., decreases the kinetic energy.

The average kinetic energy of the molecules of a gas is directly proportional to the absolute temperature.