Please use space provided for your solutions but if more space is need clearly mark your solution and attach to your midterm. Make sure your name is on every attached sheet. Clearly mark your answer and don't forget to include units. Good luck. Problem 1. __/16 points). True or False TF Effective diffusion through pores is slower than molecular diffusion in the same phase TF Knudsen pore diffusion is important in both gas and liquid phase pore diffusion TF If there is no concentration gradient than there is no flux TF Mass transfer is faster in solid than in liquid TF TF According to the Hayduk and Laudie, diffusion coefficient in water is independent of temperature. Dka = 13.26 - 10-581.14 V 70.689 For water diffusion in the air above a lake, the mole fraction of water water in the air just above the lake is determined by the saturated vapor pressure of water. The Kinetic theory of gases account from molecular interactions using Lennard Jones potential but the Hirschfelder equation assumes no interactions. The pore diameter in the Knudsen diffusion T equation should be in micro meters (um) = T F TF DKA = 4850dpore V MA