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CHEMICAL ENGINEERING

Holding time for flow reactors is __________ the space time, for constant fluid density

Question: Holding time for flow reactors is __________ the space time, for constant fluid density
[A].

double

[B].

triple

[C].

equal to

[D].

none of these.

Answer: Option C

Explanation:

No answer description available for this question.

Holding time for flow reactors is __________ the space time, for constant fluid density Read More »

CHEMICAL ENGINEERING, Chemical Reaction Engineering

With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Question: With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)
[A].

increases

[B].

decreases

[C].

remains unaffected

[D].

increases Linearly

Answer: Option A

Explanation:

No answer description available for this question.

With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system) Read More »

CHEMICAL ENGINEERING, Mass Transfer

Milligram of KOH required to saponify 1 gm of oil is called its __________ number.

Question: Milligram of KOH required to saponify 1 gm of oil is called its __________ number.
[A].

saponification

[B].

acid

[C].

precipitation

[D].

emulsion

Answer: Option A

Explanation:

No answer description available for this question.

Milligram of KOH required to saponify 1 gm of oil is called its __________ number. Read More »

CHEMICAL ENGINEERING, Chemical Engineering Basics

Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

Question: Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.
[A].

decrease

[B].

increase

[C].

no change

[D].

either (a) or (b), depends on the type of reaction

Answer: Option C

Explanation:

No answer description available for this question.

Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion. Read More »

CHEMICAL ENGINEERING, Chemical Reaction Engineering

With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop

Question: With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop
[A].

decreases

[B].

remains unchanged

[C].

increases

[D].

decreases exponentially

Answer: Option C

Explanation:

No answer description available for this question.

With increase in the liquid flow rate at a fixed gas velocity in a randomly packed counter current gas-liquid absorption column, the gas pressure drop Read More »

CHEMICAL ENGINEERING, Mass Transfer

Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes.

Question: Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes.
[A].

3

[B].

4

[C].

6

[D].

8

Answer: Option B

Explanation:

No answer description available for this question.

Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes. Read More »

CHEMICAL ENGINEERING, Chemical Reaction Engineering