Q. The figure given below is a single stage ideal co- current process of solute transfer from liquid to gas phases.

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Q. Find the operating line slope.
Where,
X,Y- concentration in mole ratio of liquid and gas phase
x,y-concentration in mole fraction
Gs,Ls- mole free basis( non-diffusing solvent)

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Q. Look out the figure below. At the position (X), which of the following will be remains same as it enters into the process.

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Q. Find the x & y co-ordinate in the figure below at steady state. Here, the gas phase and liquid phase mole fraction representation is given below.

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

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

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Q. The main purpose of cascades is

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Q. More than one stages are interconnected to form

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Q. Ideal stages are also known as

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

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Q. For Air-Water system Lewis Number equals to

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

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

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

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

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