Mass Transfer Separation of __________ employs gaseous diffusion process. SO₂ and air N₂ and O₂ from air Isotopes of helium Isotopes of uranium SO₂ and air N₂ and O₂ from air Isotopes of helium Isotopes of uranium ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following quantities need not be fixed before starting the design of a co-current absorber? None of the listed here Flow rate of entering liquid Flow rate of gas Heat gain or loss None of the listed here Flow rate of entering liquid Flow rate of gas Heat gain or loss 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 8.5 x 10⁻⁴ 5.6 x 10⁻³ 8.5 x 10⁻³ 5.6 x 10⁻⁴ 8.5 x 10⁻⁴ 5.6 x 10⁻³ 8.5 x 10⁻³ 5.6 x 10⁻⁴ 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 Yes ; but the air flow rate should be excessively high No Yes Yes ; but height of cooling tower will be prohibitively high Yes ; but the air flow rate should be excessively high No Yes ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of non-ideal gases and liquids, the molal diffusivity Varies directly as the pressure Is independent of pressure Is equal to the volumetric diffusivity Varies inversely as the pressure Varies directly as the pressure Is independent of pressure Is equal to the volumetric diffusivity Varies inversely as the pressure ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Diffusion in concentrated solutins differs from that in dilute solutions, because of the change in the __________ with the concentration of the solution. Both A & B Neither A nor B Viscosity Degree of ideality Both A & B Neither A nor B Viscosity Degree of ideality ANSWER DOWNLOAD EXAMIANS APP
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