The increase of temperature will NOT affect the rate of diffusion ?

As the distance of diffusion increases, there are more particles constantly colliding and thus diffusion decreases. Yet, the increase of temperature increases the kinetic energy of particles for diffusion; shouldn't this increase of kinetic energy cause more collisions between moving particles ? So, why does temperature increase the rate of diffusion.

1 Answer
Feb 7, 2016

It is not just collisional energy that is taking place. There is also changes in kinetic energy (hence, velocity) involving movement of the molecule. And with increased velocity (or mean speed ve


(or mean speed velocity), comes increased path length of travel of molecule. This path length at which molecules move is what constitute diffusion.