11. Pick out the system with maximum boiling azeotrope at 1 atm.
12. Leaching of uranium ore and gold ore is done in
13. 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 $$\left( {\frac{{{{\text{y}}_{{\text{in}}}}}}{{{{\text{y}}_{{\text{out}}}}}}} \right).$$
For 98% recovery of acetone, the number of trays required is/are
For 98% recovery of acetone, the number of trays required is/are
14. The fixed cost of a distillation column at minimum reflux ratio is
15. The operating cost of a distillation column at minimum reflux ratio is
16. Drying operation under vacuum is carried out to
17. Unit of molal diffusivity is
18. __________ temperature is the steady state temperature attained by a small amount of liquid evaporating into a large quantity of unsaturated gas-vapor mixture.
19. In a counter-current liquid extractor
20. Equilibrium-moisture curves of different solids
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