As complete saturation of an adsorbent is approached, the differential heat of adsrop-tion approaches ____________________?

Byadmin February 17, 2019August 22, 2021

As complete saturation of an adsorbent is approached, the differential heat of adsrop-tion approaches ____________________?

A. That of normal condensation
B. Integral heat of adsorption
C. Zero
D. None of these

Mass Transfer

During constant rate drying period, vaporisation rate per unit drying surface area _____________________?

During constant rate drying period, vaporisation rate per unit drying surface area _____________________?

A. Decreases with time
B. Increases with time
C. Does not change with time
D. Does not affect the moisture content of the wet solid

Read More During constant rate drying period, vaporisation rate per unit drying surface area _____________________?
Mass Transfer

The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by __________________?

The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by __________________?

A. Raising the temperature
B. Lowering the total pressure
C. Both A. and B.
D. Neither A. nor B.

Read More The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by __________________?
Mass Transfer

Ion exchange process is similar to___________________?

Ion exchange process is similar to___________________?

A. Absorption
B. Adsorption
C. Extraction
D. Leaching

Read More Ion exchange process is similar to___________________?
Mass Transfer

pertaining to the analogy between equations of heat and mass transfer operations ?

pertaining to the analogy between equations of heat and mass transfer operations ?

Pick out the wrong statement
A. Sherwood number in mass transfer is analogous to Nusselt number in heat transfer
B. Prandtl number in heat transfer is analogous to Schmidt number in mass transfer
C. Reynolds number in mass transfer is analogous to Grashoff number in heat transfer
D. Reynolds number remains the same in both heat and mass transfer

Read More pertaining to the analogy between equations of heat and mass transfer operations ?
CHEMICAL ENGINEERING | Mass Transfer

For the same process conditions, the reflux ratio of an unlagged distillation column

Question: For the same process conditions, the reflux ratio of an unlagged distillation column
[A].

decreases in winter
[B].
increases in winter
[C].
increases in summer
[D].
none of these

Answer: Option B

Explanation:

No answer description available for this question.

Read More For the same process conditions, the reflux ratio of an unlagged distillation column
Mass Transfer

Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a____________________?

Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a____________________?

A. Higher dew point
B. Higher absolute (specific) humidity
C. Higher relative humidity
D. Higher wet bulb temperature

Read More Air initially at 101. 3 kPa and 40°C and with a relative humidity of 50%, is cooled at constant pressure to 30°C. The cooled air has a____________________?

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