Mass Transfer Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second. 5 to 10 > 10 1 to 5 1 5 to 10 > 10 1 to 5 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of packed towers for distillation is generally limited to the Small sizes Vacuum distillation Multicomponent distillation High pressure operation Small sizes Vacuum distillation Multicomponent distillation High pressure operation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Use of raschig rings in place of crushed stones as packing in packed beds (other things being same) Decreases pressure drop, increases surface area Increases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, decreases surface area Decreases pressure drop, increases surface area Increases pressure drop, increases surface area Decreases pressure drop, decreases surface area Increases pressure drop, decreases surface area ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as K ∝ D K ∝ √D K ∝ D2 K ∝ D1.5 K ∝ D K ∝ √D K ∝ D2 K ∝ D1.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer According to Chilton-Colburn analogy for mass transfer, NSt.NSc2/3 is equal to 1/f F 2f F/2 1/f F 2f F/2 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer With increase in temperature, the leaching rate increases because of the Both Decreased viscosity of liquid & Increased diffusivity None of the listed here Increased diffusivity Decreased viscosity of liquid Both Decreased viscosity of liquid & Increased diffusivity None of the listed here Increased diffusivity Decreased viscosity of liquid ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS