Mass Transfer Leaching of coffee from coffee beans is done by Hexane Dilute H₂SO₄ (hot) Lime water Hot water Hexane Dilute H₂SO₄ (hot) Lime water Hot water ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower. Is greater than Cannot be predicted as data are insufficient Is same as Is lower than Is greater than Cannot be predicted as data are insufficient Is same as Is lower than ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m²/m³) 50 1000 100 500 50 1000 100 500 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following is not fixed by the process requirements, in the design of absorbers? Terminal concentrations of gas stream Flow rate of the entering gas None of these Composition of the entering liquid Terminal concentrations of gas stream Flow rate of the entering gas None of these Composition of the entering liquid ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer In McCabe-Thiele method, at infinite reflux ratio Both A & B Neither A nor B The overhead product is minimum Both the operating lines coincide with diagonal Both A & B Neither A nor B The overhead product is minimum Both the operating lines coincide with diagonal ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer A liquid mixture contains 30% o-xylene, 60% p-xylene and 10%. m-xylene (all percentages in w/w). Which of the following statements would be true in respect of this mixture? The mixture exhibits an azeotrope at 101.3 kPa The mixture contain optical isomers The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 10 The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10 The mixture exhibits an azeotrope at 101.3 kPa The mixture contain optical isomers The composition of the mixture, in percent by volume is: o-xylene 30, p-xylene 60. and m-xylene 10 The composition of the mixture in mole percent is: o-xylene 30, p-xylene 60 and m-xyoene 10 ANSWER DOWNLOAD EXAMIANS APP
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