Lewis number (Le) is___________________?
Lewis number (Le) is___________________?
A. Sc × Pr
B. Pr × St
C. Sh × Pr
D. St × Sh
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With increase in temperature, the solubility of gases in liquids, at fixed pressure____________________?
With increase in temperature, the solubility of gases in liquids, at fixed pressure____________________?A. Increases
B. Decreases
C. Remain same
D. Either A. or B., depends on the systemA 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is
Question: A 25 cm x 25 cm x 1 cm flat sheet weighing 1.2 kg initially was dried from both sides under constant drying rate conditions. It took 1500 seconds for the weight of the sheet to reduce to 1.05 kg. Another 1m x 1m x 1cm flat sheet of the same material is to be dried from one side only.Under the same constant drying rate conditions, the time required for drying (in seconds) from its initial weight of 19.2 kg to 17.6 kg is
[A].1000 [B].
1500 [C].
2000 [D].
2500 Answer: Option A
Explanation:
No answer description available for this question.
Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant.
Question: Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant.
[A].agitated vessel [B].
sieve tray column [C].
bubble cap column [D].
packed tower Answer: Option A
Explanation:
No answer description available for this question.
Which of the following parameters remains almost constant during adiabatic saturation of unsaturated air ?
Which of the following parameters remains almost constant during adiabatic saturation of unsaturated air ?A. Dry bulb temperature
B. Dew point
C. Wet bulb temperature
D. None of theseIn an operating distillation column, the______________________?
In an operating distillation column, the______________________?A. Vapors and liquids are at their dew point and bubble point respectively
B. Driving force for the liquid flow is its specific weight
C. Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from
the bottom to the top of the column
D. Highest temperature is encountered at the top of the columnFor water-ethanol system, the minimum reflux ratio
Question: For water-ethanol system, the minimum reflux ratio
[A].is computed from the slope of the upper operating line that is tangent to the equilibrium curve. [B].
is computed from the intercept of the operating line. [C].
cannot be computed. [D].
is the optimum reflux ratio. Answer: Option A
Explanation:
No answer description available for this question.