1. Tardigrade
  2. Question
  3. Physics
  4. According to the kinetic theory of gases, the pressure exerted by a gas on the walls is measured as

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. According to the kinetic theory of gases, the pressure exerted by a gas on the walls is measured as

Kinetic Theory

Solution:

According to Newton's second law:
Force $=$ rate of change of momentum
$ F =\frac{ dp }{ dt } $
Particles impart momentum on the wall.
And the rate of change of momentum is the force exerted on the wall.
Pressure is force per unit area.
Hence pressure exerted by gas on the wall is the rate of change of momentum imparted to the walls per second per unit area.