Mass Transfer The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around 3.97 0.24 1 600 3.97 0.24 1 600 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Chemisorption compared to physical absorption has Lower adsorption rate Lower capacity of the solvent for the solute gas Increased utilisation of stagnant zones of the liquid phase None of these Lower adsorption rate Lower capacity of the solvent for the solute gas Increased utilisation of stagnant zones of the liquid phase None of these ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At constant pressure, with increase of temperature, the dew point will Remain unchanged Increase/decrease ; depends on the temperature Decrease Increase Remain unchanged Increase/decrease ; depends on the temperature Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the correct relationship. (where, Ri = internal reflux ratio Ro = external reflux ratio. ) (1 - Ri) = Ro/Ri (1 + Ri) = Ro/Ri (1 - Ro) = Ro/Ri (1 + Ro) = Ro/Ri (1 - Ri) = Ro/Ri (1 + Ri) = Ro/Ri (1 - Ro) = Ro/Ri (1 + Ro) = Ro/Ri ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following provides maximum contact surface for a liquid-vapour system? Bubble-cap plate column Seive-plate column Wetted wall column Packed tower Bubble-cap plate column Seive-plate column Wetted wall column Packed tower ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent. None of these > 100 100 < 100 None of these > 100 100 < 100 ANSWER DOWNLOAD EXAMIANS APP
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