Mass Transfer Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity None of these Mass diffusivity to momentum diffusivity Momentum diffusivity to thermal diffusivity Thermal diffusivity to mass diffusivity None of these Mass diffusivity to momentum diffusivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 x 10⁻³ kg mole/m².s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m² .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is 5.6 x 10⁻⁴ 5.6 x 10⁻³ 8.5 x 10⁻⁴ 8.5 x 10⁻³ 5.6 x 10⁻⁴ 5.6 x 10⁻³ 8.5 x 10⁻⁴ 8.5 x 10⁻³ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Gaseous diffusion co-efficient increases with increase in the None of the listed here Temperature Pressure Both Pressure & Temperature None of the listed here Temperature Pressure Both Pressure & Temperature ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For water-ethanol system, the minimum reflux ratio Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Cannot be computed Is computed from the intercept of the operating line Is the optimum reflux ratio Is computed from the slope of the upper operating line that is tangent to the equilibrium curve Cannot be computed Is computed from the intercept of the operating line Is the optimum reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ D2 K ∝ D K ∝ √D K ∝ D1.5 K ∝ D2 K ∝ D K ∝ √D K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture. Composition All of these Total pressure Temperature Composition All of these Total pressure Temperature ANSWER DOWNLOAD EXAMIANS APP
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