Pick out the correct statement.
(A) Higher hold up of the solid in the rotary dryer results in better exposure
of the solids to the gas
(B) The 'Hatta number' is important in problems involving gas absorption
without chemical reaction
(C) For a non-reacting binary mixture of ideal gases, the partial pressure
distribution of both components is linear in the case of steady state equimolal
counter-diffusion
(D) Total reflux in case of distillation operation requires infinite number of
plates for a binary system separation