Q. "The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements." This is the statement of

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Q. A bypass stream in a chemical process is useful, because it

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Q. 1 ata is equivalent to

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Q. 1 BTU/ft³ is approximately equal to __________ kcal/m³.

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Q. At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be

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Q. Pick out the wrong statement.

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Q. Which of the following ratios defines the recycle ratio in a chemical process ?

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Q. NaOH contains __________ percent oxygen.

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Q. Addition of a non-volatile solute to a solvent produces a __________ in its solvent.

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Q. The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be

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Q. Hess's law of constant heat summation is based on conservation of mass. It deals with

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Q. Percentage saturation of a vapor bearing gas is always __________ the relative saturation.

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Q. Cᵨ is expressed in S.I. unit as

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Q. What is the total pressure exerted by a mixture of 0.45 kg mole of benzene, 0.44 kg mole of toluene and 0.23 kg mole of o-xylene at 100°C, if their vapor pressures at 100°C are 1340, 560 and 210 mmHg respectively ?

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Q. 1 kg/cm² is equal to

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Q. An azeotropic solution of two liquids has boiling point lower than either of them, when it

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Q. For a given mass of a gas at constant temperature, if the volume 'V' becomes three times, then the pressure 'P' will become

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Q. One kg of saturated steam at 100°C and 1.01325 bar is contained in a rigid walled vessel. It lias a volume of 1.673 m³. It cools to 98°C ; the saturation pressure is 0.943 bar ; one kg of water vapour under these conditions has a volume of 1.789 m³. The latent heat of condensation (kJ/kg⁻¹ ) under these conditions is

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Q. Weight of 56 litres of ammonia at N.T.P. is __________ gm.

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Q. Concentration of a solution expressed in terms of __________ is independent of temperature.

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