Mass Transfer The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is -ve +ve ∞ -ve +ve ∞ ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molality is defined as the number of gm moles of solute per __________ of solvent. Kg Litre m³ Gm Kg Litre m³ Gm ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a binary mixture with low relative volatility, continuous rectification to get pure products will require Less number of trays Low reflux ratio Small cross-section column High reflux ratio Less number of trays Low reflux ratio Small cross-section column High reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The surface renewal frequency in Danckwerts model of mass transfer is given by (KL: mass transfer co-efficient) KL²/DA KL/DA² √(KL².DA) KL².DA KL²/DA KL/DA² √(KL².DA) KL².DA ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Molecular diffusivity of a liquid May increase or decrease with temperature Decreases with temperature Is independent of temperature Increases with temperature May increase or decrease with temperature Decreases with temperature Is independent of temperature Increases with temperature 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 At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped).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, The top and bottom compositions correspond to the maximum enrichment available 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 are unchanged with and without total reflux The top and bottom compositions correspond to the maximum enrichment available 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 are unchanged with and without total reflux ANSWER DOWNLOAD EXAMIANS APP
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