U-tube type mercury manometer is an example of
A.zero-order system
B.first order system
C.second-order system
D.third-order system
Category: Chemical Engineering Mcqs
Atmospheric corrosion of metals takes place by
A.rapid oxidation
B.slow oxidation
C.rapdi hydration
D.none of the above
Flash distillation operation is suitable for separating components which
A.boil at very close temperature
B.boil at widely different temperature
C.form minimum boiling azeotrope
D.form maximum boiling azeotrope
LPG at normal atmospheric temperature and pressure is a
A.liquid which is heavier than water
B.gas which is heavier than air
C.fas which is lighter than air
D.liquid which is lighter than water
Unsaturated vapours
A.Do not obey gas laws
B.Fully obey gas laws
C.Obey Boyle’s law and not Boyles law
D.Partly obey gas laws depending upon the degree of unsaturation
The triple point of water occurs at 0.00602 atm and
A.0.01 ?C
B.444.6?C
C.100?C
D.4?C
Thermal coefficient of linear expansion has the units of
A.K-1
B.m/K
C.m3/K
D.m
Electrolytes when dissolved in water dissociate into their constituentions. The degree of dissociation of an electrolyte increases with
A.increasing concentration of the electrolyte
B.decreasing concentration of the electrolyte
C.decreasing temperature
D.none of the above
Octane number of n-heptane is taken to be
A.15
B.0
C.100
D.17
