Challenge Problem-Physics/Chemistry Thermodynamics?

Question

4.60×10^23 nitrogen molecules collide with a 14.0 cm^2 wall each second. Assume that the molecules all travel with a speed of 410 m/s and strike the wall head on.
What is the pressure on the wall? In Pa

Answer 1

pressure is force/cm^2 and force = d(mv)dt=dm/dt 2v that is the rate of collisions times twice the velocity.