Mass Transfer The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if NPr = NLe NSc = NLe NSc = 1 NSc = NPr = NLe NPr = NLe NSc = NLe NSc = 1 NSc = NPr = NLe ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer During sensible cooling process Both B and C Relative humidity increases Relative humidity decreases Wet bulb temperature decreases Both B and C Relative humidity increases Relative humidity decreases Wet bulb temperature decreases ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Moisture in a solid exerting an equilibrium vapour pressure equal to that of the pure liquid at the same temperature is called the __________ moisture. Bound Critical Free Unbound Bound Critical Free Unbound ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid ) P < P P >>P P = P P P < P P >>P P = P P ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Overall efficiency of the distillation column is Always more than the point efficiency The ratio of number of ideal plates to actual plates Same as the Murphree efficiency The ratio of number of actual plates to ideal plates Always more than the point efficiency The ratio of number of ideal plates to actual plates Same as the Murphree efficiency The ratio of number of actual plates to ideal plates ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state, Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions correspond to the maximum enrichment available Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions correspond to the maximum enrichment available Reboiler load and condenser load are minimum The top and bottom compositions are unchanged with and without total reflux ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS