Mass Transfer In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number. None of these Grashoff Sherwood Lewis None of these Grashoff Sherwood Lewis ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL².DA KL/DA² √(KL².DA) KL²/DA KL².DA KL/DA² √(KL².DA) KL²/DA ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The binary diffusivity in gases does not depend upon the Temperature Pressure None of the listed here Nature of the components Temperature Pressure None of the listed here Nature of the components ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Overall efficiency of the distillation column is Same as the Murphree efficiency The ratio of number of ideal plates to actual plates Always more than the point efficiency The ratio of number of actual plates to ideal plates Same as the Murphree efficiency The ratio of number of ideal plates to actual plates Always more than the point efficiency The ratio of number of actual plates to ideal plates ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase. Neither A nor B Liquid Both A & B Gas Neither A nor B Liquid Both A & B Gas ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower) L/(FG.G) FG/(G.a) F/(FG.a) (G.a)/FG L/(FG.G) FG/(G.a) F/(FG.a) (G.a)/FG ANSWER DOWNLOAD EXAMIANS APP
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