Q. Fenske equation determines the

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Q. The term "cooling range" in a cooling tower refers to the difference in the temperature of

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Q. Which of the following is the most suitable for extraction in a system having very low density difference ?

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Q. Pick out the correct statement.

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Q. __________ columns are used for liquid dispersion in a continuous gas phase.

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Q. Overall efficiency of the distillation column is

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Q. On addition of solute in the solvent, the __________ of the solution decreases.

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Q. Which is the controlling factor for a drum drier?

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Q. Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty ?

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Q. The equipment frequently used for adiabatic humidification-cooling operation with recirculating liquid is

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Q. Chemisorption (chemical adsorption) is

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Q. The rate of solid-liquid extraction is limited by the

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Q. Raoult's law applies to the

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Q. The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives

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Q. If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

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Q. Compound A is extracted from a solution of A + B into a pure solvent S. A Co-current unit is used for the liquid-liquid extraction. The inlet rate of the solution containing A is 200 moles of B/hr.m² and the solvent flow, rate is 400 moles of S/m². hr. The equilibrium data is represented by Y = 3X² , where Y is in moles of a A/moles of B and X is in moles A/moles of S. The maximum percentage extraction achieved in the unit is

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Q. Raoult's law is applicable to the

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Q. Weeping in a distillation column

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Q. Agitator is provided in a crystalliser for

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Q. __________ diffusion is used for separating the isotopes of methane.

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