Mass Transfer Mechanism of moisture removal in case of freeze drying of food stuff is by Dehydration Sublimation Adsorption Evaporation Dehydration Sublimation Adsorption Evaporation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn. 8 12 6 10 8 12 6 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL/DA² KL².DA √(KL².DA) KL²/DA KL/DA² KL².DA √(KL².DA) KL²/DA ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Sieve plate column Randomly packed column Wetted wall column Bubble cap column Sieve plate column Randomly packed column Wetted wall column Bubble cap column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Batch tray dryers suffers from the disadvantage of High maintenance cost Non-uniform & low production rate High labour cost & low heat economy All of the listed here High maintenance cost Non-uniform & low production rate High labour cost & low heat economy All of the listed here ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following binary systems is an example of a maximum boiling azeotrope? Water-hydrochloric acid Water-ethyl alcohol Acetone-carbon disulphide None of the listed here Water-hydrochloric acid Water-ethyl alcohol Acetone-carbon disulphide None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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