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 Flights in a rotary dryer are provided to Reduce the residence time of solid None of these Lift and shower the solids thus exposing it thoroughly to the drying action of the gas Increase the residence time of the solid Reduce the residence time of solid None of these Lift and shower the solids thus exposing it thoroughly to the drying action of the gas Increase the residence time of the solid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer As the reflux ratio decreases, the Column diameter increases Separation becomes more efficient None of these Number of plates increases Column diameter increases Separation becomes more efficient None of these Number of plates increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Ordinary diffusion process is also called __________ diffusion. Pressure Concentration Forced Thermal Pressure Concentration Forced Thermal ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At constant pressure, with increase of temperature, the dew point will Remain unchanged Increase Increase/decrease ; depends on the temperature Decrease Remain unchanged Increase Increase/decrease ; depends on the temperature Decrease ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Only small amount of evaporation of water produces large cooling effects because of its Small latent heat None of these Low viscosity Large latent heat Small latent heat None of these Low viscosity Large latent heat ANSWER DOWNLOAD EXAMIANS APP
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