Related Questions

With increase in temperature, the leaching rate increases because of the
A Increased diffusivity
B Decreased viscosity of liquid
C Both A and B
D Neither A nor B
With increase in temperature, the leaching rate increases due to
A Decreased liquid viscosity
B Increased diffusivity
C Both A & B
D Neither A nor B
The 'shanks system' of leaching (i.e., counter-current multiple contact leaching) is used for
A Recovery of tannis from the tree barks and woods
B Leaching sodium nitrate from Chilean nitrate bearing rock
C Both A & B
D Neither A nor B
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)
A Increases
B Decreases
C Remains unaffected
D Increases Linearly
Rate of leaching increases with increasing
A Temperature
B Viscosity of solvent
C Pressure
D Size of the solid
Leaching rate is independent of the
A Agitation
B Temperature
C Particle size
D None of these
Heat flux increases with temperature drop beyond the Leiden frost point in the plot of heat flux vs. temperature drop for a boiling liquid, because
A Convection becomes important
B Conduction becomes important
C Radiation becomes important
D Sub-cooled boiling occurs
The price per unit of a product increases by 25% . The actual Taka increase in the unit price is Tk.1.25. What was the unit price in Taka before the price increase?
A 5
B 7.5
C 6.25
D 8.75
Leaching of phosphate rock by strong __________ acid produces phosphoric acid.
A Sulphuric
B Hydrochloric
C Either A or B
D Neither A nor B
Coffee is prepared from coffee beans by leaching with
A Cold water
B Hot water
C Dilute hot caustic solution
D Naphtha

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