Mass Transfer Desirable value of absorption factor in an absorber is < 1 > 1 1 0.5 < 1 > 1 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Can the efficiency of a plate in the distillation tower be greater than 100%? Yes ; if the reflux ratio is maximum Yes Normally not; but is possible if infinite number of plates are put Never Yes ; if the reflux ratio is maximum Yes Normally not; but is possible if infinite number of plates are put Never ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Most important factor to be considered in the selection of packings for absorbers is the __________ of packing. Durability Size Cost Porosity Durability Size Cost Porosity 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 At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped).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, Reboiler load and condenser load are minimum The top and bottom compositions correspond to the maximum enrichment available 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 Reboiler load and condenser load are minimum The top and bottom compositions correspond to the maximum enrichment available 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 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The most economical range of absorption factor is 2 to 2.5 1.25 to 2 2.5 to 3 5 to 10 2 to 2.5 1.25 to 2 2.5 to 3 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Very tall packed towers are divided into series of beds to Avoid channelling Reduce liquid hold-up Avoid flooding Reduce the overall pressure drop Avoid channelling Reduce liquid hold-up Avoid flooding Reduce the overall pressure drop ANSWER DOWNLOAD EXAMIANS APP
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