🏭Chemical Engineering MCQs
Chemical Engineering MCQs
496 MCQs431
With increase in temperature, the surface tension of water _____________________?
AIncreases
BDecreases
CRemain constant
DIncreases linearly
432
Vapor pressure of water at 100°C is about _______________ bar?
A0.1013
B1.013
C10.13
D101.3
433
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_________________?
Ax1/x2
Bx2/x1
C1 – (x1/x2)
D1/x2
434
In _______________ process, ions of salts react with water to produce acidity or alkalinity ?
AHydration
BHydrolysis
CElectrolysis
DDialysis
435
The value of (Cp – Cv) for a real gas obeying Vander Wall’s equation is____________________?
AR
B> R
C< R
D0.5 R
436
One ‘Therm’ is equivalent to___________________?
A105 BTU
B105 kcal
C109 BTU
D109 kcal
437
Pure oxygen is mixed with air to produce an enriched air containing 50 volume % of oxygen. The ratio of moles of air to oxygen used is_________________?
A1.72
B0.58
C0.5
D0.2
438
How much O2 can be obtained from 90 kg of water ?
A32 kg
B80 kg
C64 kg
D90 kg
439
What is the simplest formula of a compound containing 50% of element A (atomic weight = 10) and 50% of element B (atomic weight = 20) ?
AAB3
BA2B3
CA2B
DAB2
440
Which of the following has the smallest least effect on the solubility of a solute into the solvent ?
ANature of the solute
BNature of the solvent
CTemperature
DPressure