Question

Which of the following assumptions is incorrect according to kinetic theory of gases?

• A. Particles of a gas move in all possible directions in straight lines.
• B. All the particles, at any particular time, have same speed and same kinetic energy.
• C. There is no force of attraction between the particles of a gas at ordinary temperature and pressure.
• D. The actual volume of the gas is negligible in comparison to the empty space between them.

Answer 1

Answer: (B)

All the particles, at any particular time, have same speed and same kinetic energy.

Answer 2

: At any particular time, different particles have different speeds and hence different kinetic energies.