Mass Transfer Solvent used in extractive distillation Forms a high boiling azeotrope Is of low volatility Does not alter the relative volatility of the original components Forms a low boiling azeotrope Forms a high boiling azeotrope Is of low volatility Does not alter the relative volatility of the original components Forms a low boiling azeotrope ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The solvent used in liquid-liquid extraction should have __________ less than one. Neither A nor B Both A & B Distribution co-efficient Selectivity Neither A nor B Both A & B Distribution co-efficient Selectivity ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following unit operations makes use of Thiele-Geddes equation? Multicomponent absorption with chemical reaction Liquid-liquid extraction Solid-liquid extraction Multicomponent distillation Multicomponent absorption with chemical reaction Liquid-liquid extraction Solid-liquid extraction Multicomponent distillation ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Acetone is to be removed from air in an isothermal dilute absorber using pure water as solvent. The incoming air contains 5 mole% of acetone (yin = 0.05). The design equation to be used for obtaining the number of trays (N) of the absorber is, N+2 = 6 log (yin/yout).For 98% recovery of acetone, the number of trays required is/are 10 9 1 8 10 9 1 8 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law. Parabolic Exponential Linear Cubic Parabolic Exponential Linear Cubic 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 At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped).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 are unchanged with and without total reflux Reboiler load and condenser load are minimum The top and bottom compositions correspond to the maximum enrichment available Composition of vapors and that of liquid do not vary throughout the column The top and bottom compositions are unchanged with and without total reflux Reboiler load and condenser load are minimum The top and bottom compositions correspond to the maximum enrichment available ANSWER DOWNLOAD EXAMIANS APP
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