Which of the following statements is not correct regarding kinetic theory of gases?

Options

A. Gases are considered as point masses
B. Kinetic energy of gas molecules increases with temperature
C. Total energy of molecules before and after the collisions is different
D. The distribution of molecular speed of a gas remains constant at a particular temperature

Answer

C

Explanation

The explanation of given statements are as follows:
(a) Gas particles are considered as point mases or rigid particles.
(b) Kinetic energy of gas molecules are directly proportional to absolute temperature.
`:. K.E. prop T`
Therefore, K.E. increase with increasing temperature.
(c) Rigid elastic gas particles show collisions and follow energy conservation rule. Therefore, energy of molecules before and after the collisions are equal.
(d) The distribution of molecular speed of gas remain constant at particular temperature.
Hence, option (c) is incorrect.