Chemical Engineering MCQs

Page No. 179

Heat of neutralisation of a strong acid and strong base is always a constant value, i.e., 57 KJ/Kg mole. This is because_________________?


aThe strong base and strong acid reacts completely

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bThe salt formed does not hydrolyse

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cOnly OH- and H+ ions react in every case

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dThe strong base and strong acid reacts in aqueous solution

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Heat of neutralisation of HCl and NaOH is – 57.46 kJ/Kg mole. The heat of ionisation of water will be _____________ kJ/Kg mole?


a 57.46

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b -57.46

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c114.92

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d-28.73

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View Answer 57.46

Which of the following is followed by an ideal solution ?


aBoyle’s law

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bAmagat’s law

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cRaoult’s law

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d Trouton’s rule

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View Answer Raoult’s law

The combustion equations of carbon and carbon monoxide are as follows: C + O2 = CO2, ΔH = – 394 kJ/kg .mole CO + ½ O2 = CO2, ΔH = – 284.5 kJ/kg. mole. The heat of formation of CO is _____________ kJ/kg. mole?


a-109.5

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b +109.5

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c+180

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d+100

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View Answer -109.5

Which of the following is not correct for a reversible adiabatic process ?


aTVγ-1 = constant

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b p1-γ.TY = constant

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cPVγ = constant

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d None of these

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View Answer None of these

Recycling in a chemical process facilitates___________________?


a Increased yield

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bEnrichment of product

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cHeat conservation

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dAll A., B. & C.

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View Answer All A., B. & C.

Internal energy is independent of the ____________ for an ideal gas?


aPressure

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bVolume

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c Both A. & B.

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d Neither A. nor B.

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View Answer Both A. & B.

“The total volume occupied by a gaseous mixture is equal to the sum of the pure component volumes”. This is the _____________ law?


aDalton’s

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bAmagat’s

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cGay-Lussac’s

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d Avogadro’s

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View Answer Amagat’s

Which of the following gravity scales is used exclusively for liquids heavier than water ?


aBaume scale

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bTwaddell scale

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cAPI scale

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dNone of these

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View Answer Twaddell scale

1m3 is approximately equal to_________________?


a28 litres

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b35 ft3

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c4.5 litres

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d4.5 ft3

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View Answer 35 ft3

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