Recent content by kkaplanoz

The equation that you use for the rate of collisions is asking for v_x, not v. v_rms is v. The relationship between the two is 3*v_x^2 = v_rms^2. This is because v_x^2+v_y^2+v_z^2=3*v_x^2=v^2.

Thanks! If I would have looked ahead in the textbook a few more pages, I could have saved myself a lot of frustration...

Homework Statement From what height must an oxygen molecule fall in a vacuum so that its kinetic energy at the bottom equals the average energy of an oxygen molecule at 300 K? Homework Equations E_avg=3/2*kb*T (kb is the boltzmann's constant) PE = mgh = KE_final = 1/2*m*v_rms^2 The...