21. Pick out the wrong statement.
22. 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* = 0.0667 m. To maintain dry conditions in a room of air space 100 m3 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
23. In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the
24. During sensible cooling process
25. Which of these columns incurs the lowest pressure drop?
26. Raschig ring made of procelain cannot be used for treating concentrated
27. Alcohol is dehydrated using __________ distillation.
28. Rose oil is extracted from rose leaves using __________ distillation.
29. Components, having widely different boiling point in a binary mixture, can be separated using __________ distillation.
30. The dimension of diffusivity is same as that of the
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