Q. In dilute solutions which are normally encountered in water treatment what is the value of the activity of coefficient assumed?

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Q. What will be the activity coefficient of a solution consisting of monovalent ions?

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Q. In case of Moving Bed Bioreactor and Activated Sludge process which is the factor that limits the rate of the reaction?

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Q. What is the value of activity coefficients for monovalent and divalent ions for a potable water at an ionic strength of 0.01 M?

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Q. In water treatment which factor which has a major control over reaction selectivity and product distribution?

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Q. The degradation of BOD is classified as what type of reaction?

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Q. Which among the following reactors has important advantages?

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Q. __________ is the net movement of mass from one location or component to another.

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Q. Which of the following do not involve mass transfer in terms of water treatment?

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Q. What is the flux not dependent on?

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Q. In which of the following cases the flux is considered as volumetric flux?

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Q. In water treatment what is the driving force due to which mass transfer occurs?

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Q. In case of aqueous solution which of the following mathematical formula holds good?

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Q. How is the value for displacement value for solute calculated?

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Q. Which of these do not relate the mass transfer coefficient and diffusion coefficient?

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Q. Which of these is used to analyse the minimum amount of extraction phase for treatment?

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Q. What is the mass transfer formula for a plug flow reactor?

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Q. The liquid phase controls the rate of mass transfer for compounds which have an H value of which of the following?

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Q. C= x⁄v

What does x stand for in the above formula?

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Q. Dilution=volume added/total volume. What does total volume indicate?

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