Mass Transfer MCQs

Pick out the wrong statement pertaining to the rotary dryer.

The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, K_c & K_m are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, K_p = M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force.)

In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.

Separation of a mixture of two gases by absorption in the liquid solvent depends upon the difference in their

Separation of __________ employs gaseous diffusion process.

Mass transfer co-efficient is directly proportional to D_AB^0.5, according to __________ theory.

The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, N_Pr = N_Sc = __________

Large scale drying of wheat is done in a __________ dryer.

The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if