Absorption accompanied by heat evolution results in____________________?

Related Mcqs:

The mass transfer co-efficient for a solid sphere of radius ‘a’ dissolving in a large volume of quiescent liquid, in which „D’ is the diffusivity of solute, is _____________________?

A. D/a B. D/2a C. Proportional to √D D. Dependent on the Reynolds number...

The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if___________________?

A. NSc = 1 B. NSc = NPr = NLe C. NPr = NLe D. NSc = NLe...

Raoult’s law does not apply, when the___________________?

A. Size of component molecules are not equal B. Attractive forces between like and unlike molecules in the solution are approximately equal C. Component molecules are non-polar D. Chemical combination or molecular association between unlike molecules takes place in the formation of solution...

In liquid extraction, if the selectivity is unity, then__________________?

A. Separation of the constituents is the most effective B. No separation will occur C. Amount of solvent required will be minimum D. Solvent flow rate should be very low...

In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be_____________________?

A. At ground level B. 2 metres above the ground C. 5 metres above ground D. 10 metres above ground...