Chemical Engineering MCQs

6108 MCQs  (Page 538 of 611)

Attempt Chemical Engineering Quiz
The most convenient way of expressing solution concentration is in terms of___________________?
A. Mole fraction
B. Normality
C. Molality
D. Molarity
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Disappearance of snow in subzero weather exemplifies the process of_________________?
A. Evaporation
B. Sublimation
C. Vaporisation
D. Melting
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The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?
A. 0.07
B. 0.09
C. 0.11
D. 0.13
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Volume occupied by one gm mole of a gas at S.T.P. is ____________________?
A. 22.4 litres
B. 22400 litres
C. 22.4 c.c
D. 359 litres
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In a mixture of benzene vapor and nitrogen gas at a total pressure of 900 mm Hg, if the absolute humidity of benzene is 0.2 kg benzene/kg nitrogen, the partial pressure of benzene in mm Hg is__________________?
A. 180
B. 60.3
C. 720
D. 200
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Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent ?
A. Temperature
B. Nature of solute
C. Pressure
D. Nature of solvent
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The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is _____________ kg mole?
A. 1
B. 0
C. 16
D. 44
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According to the kinetic theory, the thermal conductivity of a monatomic gas is proportional to___________________?
A. T
B. T0.5
C. T1.5
D. T2
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Sodium ______________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature?
A. Carbonate (monohydrate)
B. Chloride
C. Thiosulphate
D. Bisulphite
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A car tyre of volume 0.057 m3 is inflated to 300 kPa at 300 K. After the car is driven for 10 hours, the pressure in the tyre increases to 330 kPa. Assume air is an ideal gas and Cv for air is 21 J/mole.K. The change in the internal energy of air in the tyre in J/mole is__________________?
A. 380
B. 630
C. 760
D. 880
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Word of the Day
24 Jul
Untenable
(especially of a position or view) not able to be maintained or defended against attack or objection.
ناقابل مدافعت، غیر مستحکم، جو دلیل سے ثابت نہ ہو سکے

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