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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Q. Dilution factor is the reciprocal of dilution.

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Q. _________ is a step-wise and geometric series of dilutions which starts with a small amount of starting material.

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Q. Which of the following is commonly used?

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Q. A dilution is a process that increases the concentration of a substance in a solution.

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Q. Bacteria is diluted in __________

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Q. What is the minimum amount of sample required to perform serial dilution?

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Q. ___________ means that a substance can be converted into simpler compounds by biologically mediated reactions.

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Q. Oxygen in water is consumed during aerobic biodegradation of organic compounds.

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Q. The rate at which oxygen is dissolved into the water from the atmosphere is proportional to the deficit of oxygen in the water.

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Q. What is endogenous respiration?

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Q. When the deoxygenation rate exceeds the reoxygenation rate, the oxygen sag curve shows ________ in a deficit of oxygen.

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