For the system given in Figure Q.4, W a) Locate the control volumes. Write the boundary conditions and explain the reasons basing on motions of the molecules. c) Write the balance equations. b) d) Derive the velocity distribution equations. e) Derive the average velocity and volumetric flow rate equations. 1) The mass flow rate of the fluid in film flow and flow L between two plates are identical (0.2 L/min), calculate the thickness of the fluids for two flow systems if the fluid is nanofluid consisting of water as base fluid and CuO nano particles (dpav=30 nm, da-0.05, Pp=6400 kg/m', pw= 1000 kg/m', w= 1 cP) Figure Q.4