Related Questions

The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and re-condensed, then the liquid with the next higher boiling point is then evaporated and re-condensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called
A Cracking
B Fractional distillation
C Full distillation
D Carbonisation
In case of __________ boiling, the liquid temperature is below the saturation temperature and the boiling takes place in the vicinity of the heated surface.
A Nucleate
B Local
C Pool
D Saturated
Name the process by which bubbles from liquid are formed?
A Effervescence
B Surface Tension
C Surface Energy
D Degasification
Even though heat transfer co-efficients in boiling liquids is large, use of fins is advantageous, when the entire surface is exposed to __________ boiling.
A Film
B Nucleate
C Transition
D All of the above
In spite of large heat transfer co-efficients in boiling liquids, fins are used advantageously, where the entire surface is exposed to __________ boiling.
A Film
B Nucleate
C Transition
D All of the above
Heat transfer takes place through a liquid medium surrounding the submerged material under heating, in case of a/an
A Blast furnace
B Steam boiler
C Salt bath furnace
D Annealing furnace
Boiling point elevation for a strong and concentrated solution is found by Duhring's rule, which states that at the same pressure, the boiling point of a solution is a linear function of the __________ of pure water.
A Boiling point
B Dynamic viscosity
C Kinematic viscosity
D Density
Boiling of milk in an open vessel is an example of __________ boiling.
A Film
B Sub-cooled
C Saturated nucleate
D None of these
When pure water boils vigorously, the bubbles that rise to the surface are composed primarily of
A air
B hydrogen
C hydrogen and oxygen
D water vapour
A liquid is in equilibrium with its vapor at its boiling point. On an average, the molecules in the liquid and gaseous phases have equal
A Kinetic energy
B Intermolecular forces of attraction
C Potential energy
D Total energy

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