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
Adsorption is an unit operation which generally involves __________ systems.
A Liquid-solid
B Gas-solid
C Fluid-solid
D Solid-solid
An approximately __________ process exemplifies the flow of a gas through a very long pipe of uniform cross-section.
A Adiabatic
B Isothermal
C Isentropic
D Isochoric
Color of brass changes from yellow to __________ after its dezincification which exemplifies selective leaching.
A Grey
B Red
C Orange
D Violet
Sound waves propagation in air exemplifies an __________ process.
A Adiabatic
B Isothermal
C Isometric
D None of these
Reaction of benzene with chlorine gas to produce tri-chlorobenzene exemplifies a/an __________ reaction.
A Elementary
B Parallel
C Consecutive
D None of these
Mercury manometer (U-tube type) exemplifies a __________ order system.
A Zero
B First
C Second
D Third
Melting of ice exemplifies a/an
A Adiabatic process
B Endothermic reaction
C Exothermic reaction
D Process involving a chemical reaction

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