Mass Transfer Desulphurisation of petrol is done in a Bollman extractor Rotating disc extractor Plate type extraction column Packed extraction column Bollman extractor Rotating disc extractor Plate type extraction column Packed extraction column ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer At equilibrium the concentration of water in vapour phase (C*)in kg/m³ of air space and the amount of water (m) adsorbed per kg of dry silica gel are related by, C* = 0.0667m. To maintain dry conditions in a room of air space 100m³ containing 2.2 kg of water vapour initially, 10 kg of dry silica gel is kept in the room. The fraction of initial water remaining in the air space after a long time (during which the temperature is maintained constant) is 0.4 0.2 1 0.4 0.2 1 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer The ratio of Murphree plate efficiency to point efficiency is always > 1 in a __________ flow model. Perfectly mixed Plug None of the listed here Both plug & perfectly mixed Perfectly mixed Plug None of the listed here Both plug & perfectly mixed ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the system with minimum boiling azeotrope at 1 atm. All of these Benzene-toluene Ethyl alcohol-water Hydrochloric acid-water All of these Benzene-toluene Ethyl alcohol-water Hydrochloric acid-water ANSWER DOWNLOAD EXAMIANS APP
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 The feed to fractionating column is changed from saturated vapour to saturated liquid. If the separation and reflux ratio remains unchanged, the number of ideal stages will Depend on saturated boiling point; may increase or decrease Decrease Remains same Increase Depend on saturated boiling point; may increase or decrease Decrease Remains same Increase ANSWER DOWNLOAD EXAMIANS APP
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