Q. For the same process conditions, the reflux ratio of an unlagged distillation column

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Q. An ideal tower packing should not

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Q. For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same.

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Q. What is the degree of freedom of an absorption process in which only one component is transferred between phases ?

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Q. Sticky material can be dried in a __________ dryer.

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Q. Langmuir equation is associated with

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Q. During the constant rate period of drying of a solid,

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Q. With increase in the concentration of the adsorbate, the integral heat of adsorption

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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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