Mass Transfer Which of the following plays an important role in problems of simultaneous heat and mass transfer? Sherwood number Schmidt number Prandtl number Lewis number Sherwood number Schmidt number Prandtl number Lewis number ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the flow of gases through a capillary, with increase in temperature, the permeability __________ as per Knudsen law. Either A or B; depends on the gas Remains same Decreases Increases Either A or B; depends on the gas Remains same Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of absorption & stripping, the interface of the liquid & gas phases are present in equilibrium, when the diffusional resistance of __________ is zero. All of these Interface Liquid phase Gas phase All of these Interface Liquid phase Gas phase ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A liquid mixture contains 30% o-xylene, 60% p-xylene and 10%. m-xylene (all percentages in w/w). Which of the following statements would be true in respect of this mixture? The mixture exhibits an azeotrope at 101.3 kPa The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10 The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 10 The mixture contain optical isomers The mixture exhibits an azeotrope at 101.3 kPa The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10 The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 10 The mixture contain optical isomers ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the rate of leaching increases, because the None of these Thermal conductivity of solute increases Diffusivity of solute increases Viscosity of solvent decreases None of these Thermal conductivity of solute increases Diffusivity of solute increases Viscosity of solvent decreases 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 = Km 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 ANSWER DOWNLOAD EXAMIANS APP
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