Related Questions

When adsorption hysteresis is observed, the desorption equilibrium pressure is __________ that obtained by adsorption.
A Always lower than
B Always higher than
C Same as
D Dependent on the system; can be either lower or higher than
In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole.
A 100
B 1000
C 10000
D 100000
In case of physical adsorption, the difference between heat of adsorption and heat of normal condensation is
A Equal to the heat of formation of surface compound
B Equal to the heat of wetting
C Zero
D Called integral heat of adsorption
In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
A Solute concentration
B Temperature
C Both A & B
D Neither A nor B
Fanning friction factor equation applies to the __________ fluid flow.
A Non-isothermal condition of
B Compressible
C Both A and B
D Neither A nor B
Claussius Clapeyron equation applies to the __________ process.
A Sublimation
B Melting
C Vaporisation
D All of the above
The equation Tds = dE - PdV applies to
A Single phase fluid of varying composition
B Single phase fluid of constant composition
C Open as well as closed systems
D Both B and C
Rayleigh's equation applies to __________ distillation.
A Continuous
B Steam
C Differential
D Flash
__________ equation applies to diffusivities in liquids.
A Gilliland
B Hirschfelder
C Wilke and Chang
D None of these
Removal of __________ exemplifies an adsorption unit operation.
A Uranium from its ore
B Water from petrol
C Ammonia from coke oven gas
D Mustard oil from mustard seed

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