Mass Transfer In case of absorption with exothermic reaction, for fluids having Both A & B Pr = Sc; percentage change in heat and mass transfer flux will be the same for a given change in the degree of turbulence Pr = Sc = 1; total mass, momentum and thermal diffusivity will be the same Pr = Sc ; there won Both A & B Pr = Sc; percentage change in heat and mass transfer flux will be the same for a given change in the degree of turbulence Pr = Sc = 1; total mass, momentum and thermal diffusivity will be the same Pr = Sc ; there won ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is Calculated Unknown Not required Known Calculated Unknown Not required Known ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for Constant molal overflow All of these Total reflux Constant relative volatility Constant molal overflow All of these Total reflux Constant relative volatility ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following psychrometric processes is followed by water vapour laden unsaturated air, when it is passed through solid or liquid adsorbent? Heating and dehumidification at almost constant wet bulb temperature None of these Dehumidification with dry bulb temperature remaining constant Cooling and dehumidification Heating and dehumidification at almost constant wet bulb temperature None of these Dehumidification with dry bulb temperature remaining constant Cooling and dehumidification ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Unsaturated air (with dry bulb and wet bulb temperatures being 45°C and 25°C respectively) is passed through a water spray chamber maintained at 23°C. The air will be cooled and Humidified with wet bulb temperature decreasing Humidified at constant wet bulb temperature None of these Dehumidified Humidified with wet bulb temperature decreasing Humidified at constant wet bulb temperature None of these Dehumidified ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Tower diameter may be decreased by Increasing the liquid flow rate Using higher reflux ratio Use of increased tray spacing Increasing the vapour flow rate Increasing the liquid flow rate Using higher reflux ratio Use of increased tray spacing Increasing the vapour flow rate ANSWER DOWNLOAD EXAMIANS APP
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