Question

The kinetic energy of the molecules is directly proportional to _______.

Answer 1

1. The kinetic energy of the molecules of a substance can be defined as the average energy associated with the molecule due to its vibrational motion.
2. Kinetic energy of the molecules is directly proportional to the temperature.
3. Increasing temperature increases the speed of vibration and hence the kinetic energy too and vice-versa.

Thus, the Kinetic energy of the molecules is directly proportional to temperature.