Mass Transfer To get high tray efficiency Time of contact between the two phases should be less Gas velocity should be very low Interfacial surface between liquid and gas phase should be large Liquid entrainment should be severe Time of contact between the two phases should be less Gas velocity should be very low Interfacial surface between liquid and gas phase should be large Liquid entrainment should be severe ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is S < 1 S = 1 S = ∞ S > 1 S < 1 S = 1 S = ∞ S > 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In most of the vacuum crystalliser, vacuum is generally produced by means of a Steam jet ejector with a barometric condenser Compressed air jet Suction pump None of these Steam jet ejector with a barometric condenser Compressed air jet Suction pump None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In case of a desorber (stripper), the Operating line always lies below the equilibrium curve Temperature remains unaffected Operating line always lies above the equilibrium curve Temperature always increases Operating line always lies below the equilibrium curve Temperature remains unaffected Operating line always lies above the equilibrium curve Temperature always increases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will Data insufficient, can't be predicted Decrease Increase Remain same Data insufficient, can't be predicted Decrease Increase Remain same ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Separation of two volatile liquids by distillation makes use of their Density difference Solubility Relative volatility Selectivity Density difference Solubility Relative volatility Selectivity ANSWER DOWNLOAD EXAMIANS APP