Q. Small dia distillation column can be a

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Q. If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is

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Q. An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively.The humidity of air sample expressed as kg of water vapour/kg of dry air is

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Q. __________ column is used in gas absorption process.

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Q. The relative saturation of an unsaturated mixture of gas and vapor is independent of the

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Q. The adiabatic saturation curve for a vapour-gas mixture is

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Q. Pick out the wrong statement.

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Q. The value of Nᴀ/(Nᴀ + Nʙ), for steady state equimolal counter diffusion of two gases 'A' and 'B' is

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Q. Drift in a cooling tower is

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Q. In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase.

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Q. Drying of refractory is normally carried out in a __________ dryer.

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Q. Heat sensitive materials with very high latent heat of vaporisation may be economically separated using

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Q. When the solvent dissolves very little of solute, then

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Q. The 'shanks system' of leaching (i.e., counter-current multiple contact leaching) is used for

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Q. Penetration model (theory) for mass transfer was enunciated by

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Q. Surface renewal model of mass transfer was enunciated by

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Q. When the __________ the relative humidity of air decreases, despite an increase in the absolute humidity.

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Q. For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

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Q. The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the

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Q. Unit of molal diffusivity is

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