Q. Consider a steady-state condition; the concentration at any point in the equipment never changes with time.

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Q. The real driving force of the mass transfer is

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Q. According to Lewis and Whitman theory, the departure from concentration equilibrium at the Interphase is due to

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Q. At the Interphase, the Interphase concentration of the component in both phase phases have equal chemical potential is due to differential concentration.

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Q. The equilibrium concentrations in the gas and the liquid phases, in mole fraction, give rise to a curve known as

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Q. In a certain process, there is a variation in the driving force between the phases, such a process is

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Q. In a concurrent process, the entering and leaving stream of the liquid phase concentrations in terms mole ratio is 0.25 and 0.45 also the entering and leaving stream concentration of the gas phase in terms mole ratio is 0.4 and 0.6.
Find the slope of the operating line.

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Q. Assume an ideal solution with pure component A, has a vapour pressure of 300 mmHg and the total pressure of 1atm. The concentration in terms of mole ratio is

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Q. The operating line will be straight if its concentrations are represented in mole ratio.

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Q. If the whole liquid and gas flow rates are same, we can use the mole fraction for getting a straight operating line.

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Q. Only small equipments are required for co-current process.

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Q. The driving force line between the operating line and the equilibrium line depends on

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Q. Removal of ammonia from the air with water is an example of a counter-current process.

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Q. For Air-Water system Lewis Number equals to

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Q. A device where two insoluble phases are brought into contact is known as

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Q. Ideal stages are also known as

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Q. More than one stages are interconnected to form

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Q. The main purpose of cascades is

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Q. (Yn- Yn-1)/ (Yn*-Yn-1) is

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Q. Murphree efficiency is defined as the number of equilibrium stages to the number of real stages.

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