Mass Transfer Flooding results in High gas velocity High tray efficiency Good contact between the fluids Low tray efficiency High gas velocity High tray efficiency Good contact between the fluids Low tray efficiency ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The Schmidt number which is defined as, μ/ρ D, is the ratio of the Momentum diffusivity to the thermal diffusivity Momentum diffusivity to the mass dif-fusivity None of these Thermal diffusivity to the mass diffusivity Momentum diffusivity to the thermal diffusivity Momentum diffusivity to the mass dif-fusivity None of these Thermal diffusivity to the mass diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C. -25 25 < 25 > 25 -25 25 < 25 > 25 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can a cooling tower cool water below the wet bulb temperature of inlet air? Yes ; but height of cooling tower will be prohibitively high No Yes ; but the air flow rate should be excessively high Yes Yes ; but height of cooling tower will be prohibitively high No Yes ; but the air flow rate should be excessively high Yes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is considered equivalent to one theoretical stage in Mc-Cabe Thiele's method? Total condenser Both B and C Partial condenser Reboiler Total condenser Both B and C Partial condenser Reboiler ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rate of solid-liquid extraction is limited by the Phase change of the solute as it dissolves in the solvent Diffusion of the solute through the solvent in the pores to the outside of the particle All of these Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution Phase change of the solute as it dissolves in the solvent Diffusion of the solute through the solvent in the pores to the outside of the particle All of these Diffusion of the solute from the solution in contact with the particle to the main bulk of the solution ANSWER DOWNLOAD EXAMIANS APP
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