What is an IB education? The IB programme continuum of international education This document is provisional pending review of the IB learner profile. Additional resources to support and communicate What is an IB Education? will be available in 2013â14.
Hello Ariana! Molecular weight and diffusion are inversely proportional; the greater the molecular weight, the slower the rate of diffusion. In fact, certain molecules can never pass through membranes, thus protecting the cell. I am not sure I understand your theory and second question.
Diffusion rate (r) is directly proportional to average molecular velocity. Where; r 1 and r 2 are diffusion rates of gas 1 and gas 2, V 1 and V 2 are average molecular velocities of gases and M 1 and M 2 are molecular masses of gases. Equation given above is called also Graham's Diffusion Law. Now, we will give diffusion ratio of two different gases at different temperatures.