Mass Transfer Deairation (removal of O₂) of water is done by Ion-exchange Rectification Absorption Adsorption Ion-exchange Rectification Absorption Adsorption ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The temperature of water cooled in cooling tower is always __________ temperature of entering air. More than the wet bulb Equal to the wet bulb Equal to the dry bulb Less than the wet bulb More than the wet bulb Equal to the wet bulb Equal to the dry bulb Less than the wet bulb 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.) Kc = Kp/RT = Km . RT/P Kc = Kp . RT = Km . RT/p None of these Kc = Kp = Km Kc = Kp/RT = Km . RT/P Kc = Kp . RT = Km . RT/p None of these Kc = Kp = Km ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Heat load in a cooling tower Both A & B Is equal to the number of kg, of water circulated times the cooling range Means the amount of heat thrown away (KCal/hr.) by the cooling tower Neither A nor B Both A & B Is equal to the number of kg, of water circulated times the cooling range Means the amount of heat thrown away (KCal/hr.) by the cooling tower Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Reynolds number of the liquid was increased 100 fold for a laminar falling film used for gas-liquid contacting. Assuming penetrating theory is applicable, the fold increase in the mass transfer co-efficient (Kc) for the same sytem is 1 100 5 10 1 100 5 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases. Degree of turbulence Physical properties Interfacial area Chemical properties Degree of turbulence Physical properties Interfacial area Chemical properties ANSWER DOWNLOAD EXAMIANS APP
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