Q. A flowsheet is given in the following figure. If the single pass once through conversion of A to B is 20%, then the rate of recycle R (molds/hr) is

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Q. The equilibrium data of component A in the two phases B and C are given below. The estimate of Y for X = 4 by fitting a quadratic expression of a form Y = mX² for the above data is

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Q. The reaction A + B → C has been conducted in a reactor as shown below. The number of balances (material) that can be made around the reactor are

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Q. Acidity or alkanity of a solution is expressed by its pH value, which is defined as (where, [H⁺] = hydrogen ion concentration in the solution).

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Q. Which equation is not an equation of state ?

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Q. The reaction A + B → C has been conducted in a reactor as shown below. The number of boundaries around which material balance can be written, are

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Q. Which of the following is not a colligative property ?

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Q. Atoms of the same element, but of different masses are called

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Q. If pH value of an acidic solution is decreased from 5 to 2, then the increase in its hydrogen ion concentration is __________ times.

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Q. Kopp's rule is concerned with the calculation of

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Q. Density of carbon dioxide is __________ kg/Nm³.

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Q. One Newton is equal to __________ dynes.

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Q. A very dilute solution is prepared by dissolving 'x₁' mole of solute in 'x₂' mole of a solvent. The mole fraction of solute is approximately equal to

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Q. An ideal gas can be liquified, because

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Q. The rate of material __________ is zero in case of a steady state system.

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Q. A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the

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Q. 1 kgf/cm² is not equal to

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Q. Pick out the wrong statement.

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Q. On addition of 1 c.c. of dilute hydrochloric acid (1% concentration) to 80 c.c. of a buffer solution of pH = 4, the pH of the solution becomes

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Q. The weight fraction of methanol in an aqueous solution is 0.64. The mole fraction of methanol Xᴍ satisfies

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