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Chemical Engineering · all questions

Mass Transfer
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__________ is the temperature at which a gas-vapor mixture becomes saturated, when cooled at constant total pressure out of contact with a liquid.

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Advantage of continuous drying over batch drying is that the

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Channelling in a packed tower results from the

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Pick out the wrong statement. Generally for physical adsorption, a gas of

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Dew point of a gas-vapour mixture

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Which of the following is an undesirable property in a tower packing?

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The most economical range of absorption factor is

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With increase in temperature, the leaching rate increases because of the

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Out of two equilibrium curves, first one lies above the diagonal and the second lies below the diagonal in the x-y plot. It means that separation by distillation is

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Leaching of coarse solid lumps is also termed as

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Critical humidity of a solid salt means the humidity

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The process employing desorption of the absorbed solute by a solvent is called

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Degree of freedom for leaching and solvent extraction process is

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The reciprocal of stripping factor is termed as

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Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

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Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

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Freundlich equation applies to the adsorption of solute from

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The relative volatility of a binary mixture at the azeotropic composition is

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Packed column distillation is limited to the column __________ metres.

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The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

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