Question: __________ extractor uses centrifugal force for separating the two phases.
[A].Treybal
Schiebel
Podbielniak
None of these
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
Chemical Engineering
If the amount of the steam used in steam distillation is increased, the temperature of distillation
Question: If the amount of the steam used in steam distillation is increased, the temperature of distillation
[A].increases
decreases
remains unchanged
depends on relative volatility
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
Dorr thickener is an equipment used for
Question: Dorr thickener is an equipment used for
[A].classification
sedimentation
clarification
leaching
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
The boiling points of pure components of a binary system __________ with increase in total pressure of the system.
Question: The boiling points of pure components of a binary system __________ with increase in total pressure of the system.
[A].decreases
increases
remains unchanged
may increase or decrease, depends on the system.
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by
Question: JD factor for mass transfer is a function of Reynolds number. Mass transfer by molecular diffusion from a single drop to surrounding still air is given by
[A].Nsh = 2
Nst = 2
Nsc = 2
none of these
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
No answer description available for this question.
Laboratory determination of the dif-fusivity of vapor is done by __________ method.
Question: Laboratory determination of the dif-fusivity of vapor is done by __________ method.
[A].wetted wall column
Gilliland’s
Winkel mann’s
Wike’s
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).
Question: For achieving rapid drying rate in a spray dryer, the diameter of the particles in the feed should be in the range of __________ microns (1 mm = 1000 microns).
[A].1-5
10-60
200-300
> 500
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.
In steam distillation, the
Question: In steam distillation, the
[A].temperature is 100°C.
temperature is more than 100° C.
product must be immiscible with water.
temperature is higher than the boiling point of either component.
[A].
[B].
[C].
[D].
Answer: Option C
Explanation:
No answer description available for this question.
If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that
Question: If the solubilities of different components (in a liquid-liquid extraction system) increase with rise in temperature, then the temperature above which they dissolve completely is known as the critical solution temperature (CST or consolute temperature). If solubilities increase with decrease in temperature, then CST is the temperature below which they dissolve completely. If a binary system has no critical solution temperature, it implies that
[A].the system comprises of partially mis-cible liquids.
the system comprises of miscible liquids.
the system comprises of an azeotrope.
on heating, a vapor phase will appear ; while on cooling, a solid phase will appear.
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.
Molecular distillation is
Question: Molecular distillation is
[A].high temperature distillation
for heat-sensitive materials
very low pressure distillation
both (b) and (c)
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
No answer description available for this question.