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


bThe salt formed does not hydrolyse


cOnly OH- and H+ ions react in every case


dThe strong base and strong acid reacts in aqueous solution



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


b -57.46


c114.92


d-28.73


View Answer 57.46

Which of the following is followed by an ideal solution ?


aBoyle’s law


bAmagat’s law


cRaoult’s law


d Trouton’s rule


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


b +109.5


c+180


d+100


View Answer -109.5

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


aTVγ-1 = constant


b p1-γ.TY = constant


cPVγ = constant


d None of these


View Answer None of these

Recycling in a chemical process facilitates___________________?


a Increased yield


bEnrichment of product


cHeat conservation


dAll A., B. & C.


View Answer All A., B. & C.

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


aPressure


bVolume


c Both A. & B.


d Neither A. nor B.


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


bAmagat’s


cGay-Lussac’s


d Avogadro’s


View Answer Amagat’s

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


aBaume scale


bTwaddell scale


cAPI scale


dNone of these


View Answer Twaddell scale

1m3 is approximately equal to_________________?


a28 litres


b35 ft3


c4.5 litres


d4.5 ft3


View Answer 35 ft3

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