It can be viewed as a relation between the temperature and average kinetic energy of gas molecule because the latter is equal at the same temperature due to the ideal gas law.
It can be viewed as a relation between the temperature and average kinetic energy of gas molecule because the latter is equal at the same temperature due to the ideal gas law. The mathematical expression of Knudsen's law is similar to this law, and the separation of Uranium isotopes through Uranium hexafluoride is often incorrectly explained as an application of it. Explaining a process that can also be described by Fick's law, For 10 points, identify this law named after its Scottish discoverer which states that the rate of diffusion for a gas is inversely proportional to the square root of its molar mass. 
It can be viewed as a relation between the temperature and average kinetic energy of gas molecule because the latter is equal at the same temperature due to the ideal gas law.
Graham's Law of diffusion or Graham's Law of effusion 