Mass Transfer Chemisorption (chemical adsorption) is An irreversible phenomenon A reversible phenomenon Characterised by adsorption of heat Same as "Van der Waals" adsorption An irreversible phenomenon A reversible phenomenon Characterised by adsorption of heat Same as "Van der Waals" adsorption 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 0.2 1 0.4 0.2 1 0.4 ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Total reflux in a distillation operation requires minimum Reboiler load All of these Condenser load Number of plates Reboiler load All of these Condenser load Number of plates ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Which of the following binary systems is an example of a maximum boiling azeotrope? Acetone-carbon disulphide None of the listed here Water-hydrochloric acid Water-ethyl alcohol Acetone-carbon disulphide None of the listed here Water-hydrochloric acid Water-ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer For a binary mixture with low relative volatility, continuous rectification to get pure products will require Small cross-section column Low reflux ratio Less number of trays High reflux ratio Small cross-section column Low reflux ratio Less number of trays High reflux ratio ANSWER DOWNLOAD EXAMIANS APP
Mass Transfer Pick out the system with maximum boiling azeotrope at 1 atm. Acetone chloroform Ethyl alcohol-water Benzene-ethyl alcohol None of these Acetone chloroform Ethyl alcohol-water Benzene-ethyl alcohol None of these ANSWER DOWNLOAD EXAMIANS APP
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