41. Laboratory determination of the dif-fusivity of vapor is done by __________ method.
42. 'Absorption with chemical reaction' is involved in the removal of
43. Most important factor to be considered in the selection of packings for absorbers is the __________ of packing.
44. Which of the following employs an accessory known as 'drift eliminator' ?
45. If f = moles of vapour present per mole of feed, then the slope of feed line is (Mcabe-Thiele method)
46. The assumption made in Elis method in distillation is that enthalpy concentration lines of vapor and liquid are
47. __________ column is the most suitable for achieving the best performance for mass transfer operations involving liquid with dispersed solids.
48. In a gas-liquid absorption coloumn, for obtaining the maximum absorption efficiency
49. The reflux to a distillation column is 100 moles/hr, when the overhead product rate is 50 moles/hr. The reflux ratio is
50. In case of binary distillation, increasing the reflux ratio above optimum does not result in the increase of
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