Q. The main reason for dividing a tall packed tower into series of small towers is to

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Q. Co-current absorbers are usually used when the gas to be dissolved in the liquid is

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Q. At what percentage (by volume) of alcohol composition, it forms an azeotrope with water ?

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Q. The overall mass transfer co-efficient for the absorption of SO₂ in air with dilute NaOH solution can be increased substantially by

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Q. Flooding results in

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Q. For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because

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Q. In an operating distillation column, the

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Q. __________ is used as an 'entrainer' for the separation of acetic acid-water mixture by distillation.

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Q. Rotary dryers cannot handle __________ materials.

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Q. Pick out the correct statement.

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Q. An example of elutioh is

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Q. The operating line for an absorber is curved, when plotted in terms of

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Q. Relative volatility does not change appreciably with the change in

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Q. Boiling point diagram is not affected by the ambient

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Q. The dew point of a saturated gas phase equals the __________ temperature.

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Q. A solid material shows case hardening properties while drying. Which of the following should be controlled to control the drying process ?

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Q. In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the

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Q. For continuous drying of grannular or crystalline material, the dryer used is the __________ dryer.

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Q. When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption.

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Q. Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the __________ moisture.

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