Question

According to kinetic theory of gases, for a diatomic molecule, which are not correct?

• A. The pressure exerted by the gas is proportional to the mean speed of the molecule.
• B. The pressure exerted by the gas in proportional to the root mean square speed of the molecule.
• C. The root mean square speed of the molecule is inversely proportional to the temperature.
• D. The mean translational kinetic energy of the molecule is proportional to the absolute temperature.

Answer 1

Answer: (A), (B), (C)

The correct options are
A The pressure exerted by the gas is proportional to the mean speed of the molecule.
B The pressure exerted by the gas in proportional to the root mean square speed of the molecule.
C The root mean square speed of the molecule is inversely proportional to the temperature.

The mean translational kinetic energy of the molecule is proportional to the absolute temperature as
$KE=3/2kT$
The pressure exerted by the gas in proportional to collision rate and speed of the molecules.
The root mean square speed of the molecule is