2. Flux (32 pt) As sketched below, the water flow from a water tap is under a steady-state condition. Once water is out of the tap, we assume that there is no external force acting on it other than its gravity. The water speed just out of the tap is up. The water flow direction just out of the tap is perpendicular to the ground. The water stream cross-section area just out of the tap is Ao, the gravity acceleration is g, and the water density is p. All these are known parameters. x=0 x = x, water flow speed u, cross section area A, molar water flux j, molar water flow rate J, x=x, flow speed u, cross section area A, molar water flux j, molar water flow rate J, 1) Please choose the correct one(s) of the following statements (4pt): A) U1 > Uz B) U1 = Uz C) U1 < Uz D) A1 > Az E) A = Az F) A1 < Az G) j1 >jz H) j =jz 1) j1 J2 K) J =Jz L) J1