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Mass Transfer

Mass Transfer
In liquid-liquid extraction, the number of phases at plait point is

3
1
2
4

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Mass Transfer
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

Major decrease in the number of
No change in theoretical
Marginal decrease in the number of
None of the listed here

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Mass Transfer
With increase in temperature, the leaching rate increases because of the

Increased diffusivity
Decreased viscosity of liquid
Both Decreased viscosity of liquid & Increased diffusivity
None of the listed here

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Mass Transfer
Which of the following adsorbent is used to decolourise yellow glycerine?

Silica gel
Fuller
Alumina
Activated carbon

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Mass Transfer
Fenske equation determines the

Height of the distillation column
Maximum number of ideal plates
Minimum number of theoretical plates
Optimum reflux ratio

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Mass Transfer
Calculation of mass transfer co-efficient is mostly/normally done using __________ theory.

Film
Penetration
Surface renewal
None of the listed here

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