Mass Transfer
Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

Either same or higher than
Higher than
Same as
Lower than

ANSWER DOWNLOAD EXAMIANS APP

Mass Transfer
A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,

The top and bottom compositions correspond to the maximum enrichment available
Reboiler load and condenser load are minimum
The top and bottom compositions are unchanged with and without total reflux
Composition of vapors and that of liquid do not vary throughout the column

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Mass Transfer