81. In a distillation column, with increase in the reflux ratio, the heat removed in the cooler
82. Pick out the wrong statement.
83. Out of the following gas-liquid contacting devices, for a given set of operating conditions, gas pressure drop is the least in __________ tower.
84. In liquid extraction, if the selectivity is unity, then
85. In McCabe-Thiele method, at infinite reflux ratio
86. In Mcabe-Thiele method, at infinite reflux ratio
87. With lapse of time, the overhead composition of light component in case of batch distillation with constant reflux
88. For an absorber, both equilibrium and operating line will be straight for
89. (NRe . NSc) is termed in mass transfer operation as the __________ number.
90. Detergent solution is dried to a powder in a
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