Q. Raschig ring made of procelain cannot be used for treating concentrated

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Q. H₂S present in naphtha reformed gas is removed by absorbing with

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Q. During constant rate drying period, vaporisation rate per unit drying surface area

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Q. Pick out the wrong statement.

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Q. In rectifying section of a continuous distillation column, the

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Q. For a distillation column operating at minimum reflux, the

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Q. A solid is being dried in the linear drying rate regime from moisture content Xo to XF. The drying rate is zero at X = 0 and the critical moisture content is the same as the initial moisture Xo. The drying time for M = (Ls/ARc) is (where, L = total mass of dry solid, A = total surface area for drying Rc = Constant maximum drying rate per unit area X = moisture content (in mass of water/mass of dry solids))

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Q. Flash distillation is suitable for the separation of components

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Q. In Mcabe-Thiele method, at infinite reflux ratio

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Q. Leaching rate is independent of the

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Q. Molality is defined as the number of gm moles of solute per __________ of solvent.

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Q. __________ is concerned with the adsorption equilibria.

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Q. Fractional solvent extraction

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Q. In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be

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Q. At 750°K and 1 atm, the approximate value of Schmidt number for air is

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Q. Calculation of mass transfer co-efficient is mostly/normally done using __________ theory.

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Q. Which of the following is used for the concentration of rubber latex ?

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Q. Unsaturated air (with dry and wet bulb temperatures being 35 and 25°C respectively) is passed through water spray chamber maintained at 35°C. The air will be

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Q. For absorbing a sparingly soluble gas in a liquid, the

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Q. A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

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