Mass Transfer Prandtl number for water at 20°C is about 150 0.7 70 7 150 0.7 70 7 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty? Wetted wall column Randomly packed column Bubble cap column Sieve plate column Wetted wall column Randomly packed column Bubble cap column Sieve plate column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer 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.) None of these Kc = Kp . RT = Km . RT/p Kc = Kp = Km Kc = Kp/RT = Km . RT/P None of these Kc = Kp . RT = Km . RT/p Kc = Kp = Km Kc = Kp/RT = Km . RT/P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Binary distillation involves the mass transfer by __________ at the gas-liquid interface. A counter diffusion at an almost equal molar rate Unidirectional diffusion from gas to liquid phase Unidirectional diffusion from liquid to gas phase Either A or B A counter diffusion at an almost equal molar rate Unidirectional diffusion from gas to liquid phase Unidirectional diffusion from liquid to gas phase Either A or B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of constant underflow extraction operation, the __________ at all solute concentration. Neither A nor B Both A & B Ratio of the insoluble to solution is constant Solids are drained to the same extent Neither A nor B Both A & B Ratio of the insoluble to solution is constant Solids are drained to the same extent ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer ______ extractor uses centrifugal force for separating the two phases. Schiebel Treybal Podbielniak None of the listed here Schiebel Treybal Podbielniak None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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