For liquid water in equilibrium with a mixture of water vapour and nitrogen the number of degrees of freedom is
A.0
B.1
C.2
D.3
Category: Chemical Engineering Mcqs
Newtons law of viscosity relates
A.pressure velocity and viscosity
B.shear stress and rate of angular deformation in a fluid
C.temperature viscosity and velocity
D.pressure temperature viscosity and rate of angular deformation in a fluid.
The vacuum required in vacuum distillation of reduced crude oil is of the order of
A.1.2 mm Hg
B.120 mm Hg
C.700 mm Hg
D.740 mm Hg
For the removal of asphaltic constituents from vacuum residue the most suitable solvent is
A.liquid sulphur dioxide
B.vanadium pentaoxide
C.propane
D.triethylene glycol
Process in which the ions of salt react with water to produce acidity or alkalinity is known as
A.Electrolysis cell uses exothermic reactions to produce electrical energy
B.dialysis
C.hydrolysis
D.none of the above
The relative saturation of an unsaturated mixture of vapour and gas depends on
A.the composition of the mixture
B.the temperature of the mixture
C.the nature of the vapour
D.all of the above
Two grams of radioactive substance is reduced to 0.25 gm during a period of 60 days. The half-life period is
A.10 days
B.15 days
C.20 days
D.30 days
Which of the following hydrocarbon series are almost absent in crude petroleum?
A.Paraffins
B.Naphthenes
C.Aromatics
D.Olefins
The exit age distribution of fluid leaving a vessel is used
A.to study the reaction mechanism
B.to study the extent of non-ideal flow in the vessel
C.to know the reaction rate constants
D.to know the activation energies of a reaction.
The proximate analysis of coal gives
A.carbon hydrogen and ash
B.volatile matter moisture ash and fixed carbon
C.carbon hydrogen sulphur and nitrogen
D.volatilematter mositure nitrogen and fixed carbon
