If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

Related MCQs

• The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.
• The ratio of Murphree plate efficiency to point efficiency is always > 1 in a __________ flow model.
• If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are:
• In a moderately sized packed absorption tower, channelling (which is most severe with stacked packings) can be minimised by taking the ratio of tower diameter to packing diameter
• Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 × 10-3 kg mole/m2 .s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m2 .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is:
• A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.
• Pressure drop through plate tower as compared to that through packed tower, for the same duty will be
• A packed tower compared to a plate tower for a particular mass transfer operation
• At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower.
• Can the efficiency of a plate in the distillation tower be greater than 100%?