An increase in the liquid resistance to interphase mass transfer and a resultant reduction in plate efficiency is caused by______________?

Related Mcqs:

In a distillation column, bubble caps are located on trays with a pitch of ______________ times the outside diameter of the caps?

A. 1.3 to 2 B. 1.6 to 2 C. 2.5 D. 1.5 to 3...

The design stress, which is more than the damaging stress, is the least unit stress that will render a member unfit for service before the end of its normal life. The design stress factor or factor of safety indicates the margin between design stress and the _______________ stress?

A. Working B. Damaging C. Allowable D. None of these...

A ‘rupture disc’ is provided in chemical equipments as an accessory meant for ___________________?

A. Relieving excess pressure B. Creating turbulence C. Enhancing mixing rate D. Avoiding vortex formation...

The ratio of down take area to cross-sectional area of the tube, for calandria type evaporator ranges from_________________?

A. 0.5 to 1 B. 1 to 1.5 C. 1.5 to 2 D. 2 to 2.5...

Cooling water fouling factors vary in the range of 0.001 to 0.003____________________?

A. (BTU/hr.ft2. °F)-1 B. (kcal/hr.m2.°C)-1 C. (W/m2.°K)-1 D. (kcal/hr. m. °C)-1...