Q. Pick out the wrong statement.

• (A) The Reynolds analogy for mass transfer is given by Lewis relation and is applicable, when Schmidt number is one
• (B) Sherwood number for flow in pipes can be expressed as the ratio of the concentration gradient at wall to the overall concentration difference
• (C) According to film theory for equimolar counter diffusion, the mass transfer coefficient is given by DAB(B)P - 3, Q - 2
• (D) The z-component of the total mass flux of a component A in binary mixture of A and B is given by - Dab'.dCA/dz