Relative volatility ? for a binary system
A.decreases with increase in pressure
B.increases with increase in pressure
C.increases with increase in temperature at constant pressure
D.has no significance in distillation operation
Category: Chemical Engineering Mcqs
Phosphatic fertilizer is required
A.during early stages of plant growth to promote development of stems and leaves
B.to stimulate early growth and accelerate seeding or fruit formation in later stages of growth
C.for the development of the starches of potatoes and grains
D.for the development of the sugar of fruits and vegetables and the fibrous material of plants
In a face-centred cubic lattice there are
A.1 molecule per unit cell
B.2 molecules per unit cell
C.4 molecules per unit cell
D.8 molecules per unit cell
The form of sulphur which is the most stable at ordinary temperature is
A.Monoclinic
B.plastic
C.rhombic
D.flowers of sulphur
Man dies in an atmosphere of carbon monoxide because
A.it combines with oxygen present in the body to form carbon dioxide
B.it reduces the organic matter of tissues
C.it combines with the haemoglobin of the blood making it capable of absorbing oxygen
D.it drives up the blood
The diffusivity has the same dimensions as
A.absolute viscosity
B.kinematic viscosity
C.density
D.concentration
A fur coat on an animal will help the animal to be
A.Warm in summer
B.Cool in summer
C.Warm in winter
D.Cool in winter
E.Safe in rains
The catalyst used in the manufacture of sulphuric acid by contact process is
A.iron
B.aluminium oxid
C.nickel
D.vanadium pentoxide
Plank’s law of radiation is applicable to
A.Radiation of any kind
B.Temperature radiation
C.Monochromatic radiation
D.Thermal radiation
E.None of the above
For a real gas obeying van der Waals equation CP-CV is
A.R
B.< R
C.> R
D.zero
