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

Related Mcqs:

The dew point of an unsaturated gas-vapor mixture does not depend upon the ____________________ of the mixture?

A. Composition B. Temperature C. Total pressure D. All A., B. and C....

The relation among various mass transfer co-efficients (M.T.C) for ideal gases is given by (where, Kc & Km are M.T.C. for equimolar counter diffusion with concentration & mole fraction respectively as the driving force. and, Kp= M.T.C. for diffusion of a gas through a stagnant inert gas with pressure as driving force) ?

A. Kc = Kp = Km B. Kc = Kp/RT = Km . RT/P C. Kc = Kp . RT = Km . RT/p D. None of these...

In Azeotropic mixture, the equilibrium vapour composition is____________________?

A. More than liquid composition B. Less than liquid composition C. Same as liquid composition D. Independent of pressure...

The solvent used in liquid extraction should not have high latent heat of vaporisation, because ______________________?

A. The pressure drop and hence the pumping cost will be very high B. It cannot be recovered by distillation C. Its recovery cost by distillation may be prohibitively high D. It will decompose while recovering by distillation...

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

A. 100 B. > 100 C. < 100 D. None of these...