Question

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

• A. Gaseous particles are considered as point masses
• B. The molecules are in random motion
• C. When molecules collide, they lose energy
• D. When a gas is heated, the molecules move faster

Answer 1

The correct option is C When molecules collide, they lose energy

Theoritical
$\Rightarrow$ Molecules are considered as point masses
$\Rightarrow$ Gas molecules are always in random motion
$\Rightarrow$ Molecules are assumed to have elastic collisions with no loss of energy.
$\Rightarrow$ When heated, their KE and Temperature goes up. They move faster.
Hence, [C]