1. Explain why the diffusion coefficient in gas system is a function of T3/2 : Why isn't it a linear function? 2. The convective mass transfer coefficient kL in liquid phase around a sphere geometry can be calculated considering the following relationships: DABkL=Sh=2+0.552Re1/2Sc1/3 With Re=DuSc=DAB Does convective mass transfer coefficient in liquid phase increase upon increasing temperature? is it a linear function or a self-limiting function? Be sure to identify what fluid properties are affected by temperature and describe each dependence