Mass Transfer If f is defined as above, then which of the following applies to a feed at dew point? F < 1 0 < f < 1 F > 1 F = 1 F < 1 0 < f < 1 F > 1 F = 1 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 mass dif-fusivity Thermal diffusivity to the mass diffusivity None of these Momentum diffusivity to the thermal diffusivity Momentum diffusivity to the mass dif-fusivity Thermal diffusivity to the mass diffusivity None of these Momentum diffusivity to the thermal diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is Proportional to √D D/a Dependent on the Reynolds number D/2a Proportional to √D D/a Dependent on the Reynolds number D/2a ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular seives are regenerated by heating to __________ °C. > 1000 < 150 > 500 200-330 > 1000 < 150 > 500 200-330 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At constant pressure, with increase of temperature, the dew point will Increase/decrease ; depends on the temperature Decrease Increase Remain unchanged Increase/decrease ; depends on the temperature Decrease Increase Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 1 0.2 0.4 1 0.2 0.4 ANSWER DOWNLOAD EXAMIANS APP
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