For steady-state equimolal counterdiffusion of two gases A and A the ration NA/(NA + NB) is
A.0
B.1 D. ?
Category: Chemical Engineering Mcqs
Urea is a
A.nitrogenous fertilizer
B.Phosphatic fertilizer
C.potassic fertilizer
D.mixed fertilizer
Fuel combustion is never 100% efficient due to
A.incomplete combustion loss
B.dry gas loss or stack loss
C.moisture loss unaccountable loss
D.all these answers
The relative saturation of an unsaturated mixture of vapour and gas
A.is always equal to its percentage saturation
B.is always lower than its percentage saturation
C.is always greater than its percentage saturation
D.may be smaller or greater than its percentage saturation depending on the composition of the mixture
Alpha iron is stable
A.upto 910?C
B.between 910 and 1403?C
C.above 1403?C
D.above 2000?C
The phenomenon of fusion is responsible for the energy radiated by
A.the sun
B.the atom bomb
C.the firefly
D.lightning
All temperatures above the freezing point of gold are usually determined by
A.Thermo couple
B.Gas thermometer
C.Optical pyrometer
D.Resistance bridge
E.Any of the above
Cast iron is obtained by remelting
A.pig iron and pouring into moulds
B.steel and pouring into moulds
C.wrought iron and pouring into moulds
D.iron ore and pouring into moulds
Select the correct statement
A.Reactions with high activation energies are very temperature sensitive
B.Reactions with high activation energies are relatively temperature insensitive
C.Reactions with low activation energies are very temperature sensitive
D.A given reaction is much more temperature insensitive at low temperature than at high temperature.
