MHT CET202611 April 2026Morning ShiftChemistryStates of MatterActual
According to the kinetic molecular theory of gases, the average kinetic energy of gas molecules:
Options
- AIncreases with increase in pressure
- BDecreases with increase in volume
- CIs directly proportional to the absolute temperature
- DIs the same for all gases at the same volume
Correct answer
C. Is directly proportional to the absolute temperature
Step-by-step solution
According to the kinetic molecular theory of gases, the average translational kinetic energy of a gas molecule is given by E = 3 2 kT , where k is the Boltzmann constant and T is the absolute temperature. For one mole of an ideal gas, the average kinetic energy is E = 3 2 RT , where R is the universal gas constant. This shows that the average kinetic energy of gas molecules depends only on the absolute temperature and is directly proportional to it. It is independent of pressure, volume, and the nature of the gas.