At __________________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation?

Related Mcqs:

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 hysteresis. In such cases, the desorption equilibrium pressure is ______________ that obtained for adsorption?

A. Lower than B. Higher than C. Same as D. Either same or higher than...

Mechanism of moisture removal in case of freeze drying of food stuff is by ___________________?

A. Evaporation B. Sublimation C. Dehydration D. Adsorption...

At the boiling point of the liquid at the prevailing pressure, the saturated absolute humidity becomes_____________________?

A. 1 B. 0 C. ∞ D. None of these...

Powdery materials can be guarded against caking tendency on storage by_________________?

A. Providing irregular grain size B. Providing minimum percentage of voids C. Having maximum possible points of contact D. None of these...

Which of the following is not a batch drier ?

A. Truck drier B. Agitated pan drier C. Fluidised bed drier D. Vacuum shelf drier...