[tantruong1412]

First, sorry for my bad english! Please help me to set up the dimension matrix of the diffusion coefficent of gaseous systems. e.g: NH3 diffuses into the atmosphere (air). I don't know factorials which has affected to the coefficent of diffusion. I attach a link of file about a example of how to set up a dimension matrix. http://www.mediafire.com/download/ps17qrbz8a2dlrx/scale-up_in_chemical_engineering.pdf
Thank very much!