Q. The following expression is

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Q. Which of the following is the correct ternery diagram for liquid-liquid extraction system comprising of one pair partly soluble (e.g. water-benzene-acetic acid in which A-diluent, B - solvent and C - solute)?

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Q. The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

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Q. For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

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Q. Relative humidity is the ratio of the

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Q. In batch distillation with constant reflux, overhead product composition __________ with time.

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Q. Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the __________ of a fibre.

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Q. Heat in BTU necessary to increase the temperature of 1 lb of gas and its accompanying vapour by 1°F is called the

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Q. To increase the absorption factor, (where, G = gas flow rate, S = solvent flow rate)

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Q. In distillation columns, the number of bubble caps per tray primarily depends upon the

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Q. In distillation, overhead product contains

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Q. With increase in pressure, the relative volatility for a binary system

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Q. Low viscosity absorbent is preferred for reasons of

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Q. Mass transfer co-efficient (K) and diffusivity (D) are related according to film theory as

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Q. Drying operation under vacuum is carried out to

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Q. Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a

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Q. Separation of two or more components of a liquid solution can not be achieved by

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Q. Stefan's law describes the mass transfer by

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Q. At minimum reflux ratio for a given separation

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Q. The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________

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