The compressibility factor (Z) of an ideal gas is always
A.0
B.1
C.>1
D.<1
Category: Chemical Engineering Mcqs
Component A is said to be more volatile than component B if for all temperature in the closed interval TA < T < TB.
A.the vapour pressure of A is less than the vapour pressure of B
B.the vapour pressure of A is more than the vapour pressure of B
C.the vapour pressure of A is equal to 1 atm
D.the vapour pressure of A is equal to the vapour pressure of B
Most of the bacteria in sewage are
A.pathogenic
B.anaerobic
C.saprophytic
D.parasitic
Which of the following statements is not correct?
A.Rusting of iron can be stopped by carbon dioxide
B.Rusting of iron takes place in moist air
C.Rusting of iron produces hydrated iron (III) oxide
D.Rusting of iron is electrochemical in nature
The hydrostatic equation of pressure variation in an incompressible fluid.
A.P = p/h
B.P = ?/h
C.P = ph
D.P = ?h where ? = specific weight
The nuclide 91X234 is the Beta decay product of
A.92A234
B.91B235
C.90C234
D.93C238
The radioactive isotope of hydrogen is called
A.protium
B.deuterium
C.tritium
D.ortho-hydrogen
The molecular weight of air is 29. The value of R for air in N.m/kg. K is
A.241048
B.8312
C.286.6
D.63.3
For any vapour-gas mixture the adiabatic saturation curve is
A.straight line
B.slightly concave upward
C.slightly concave downward
Polarograph is used for the analysis of
A.solids
B.liquids
C.gases
D.liquids and gases
