Mass Transfer For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams Decreases Increases Passes through a maximum Remains unaffected Decreases Increases Passes through a maximum Remains unaffected ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec. 0.25 0.0025 1.25 2.5 0.25 0.0025 1.25 2.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if NPr = NLe NSc = NPr = NLe NSc = 1 NSc = NLe NPr = NLe NSc = NPr = NLe NSc = 1 NSc = NLe ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Drift in a cooling tower is All of these Dependent on the water lost by evaporation The water entrained by the circulating air Desirable All of these Dependent on the water lost by evaporation The water entrained by the circulating air Desirable ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of Thermal diffusivity to mass diffusivity Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity None of these Thermal diffusivity to mass diffusivity Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Physical absorption is Accompanied by evolution of heat A reversible phenomenon An irreversible phenomenon Both B & C Accompanied by evolution of heat A reversible phenomenon An irreversible phenomenon Both B & C ANSWER DOWNLOAD EXAMIANS APP
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