Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.

A

Is always equal to

B

Is always greater than

C

Is always less than

D

May be greater or less than

Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are

A

Air to open valve with the controller direct acting

B

Air to close valve with the controller indirect acting

C

Air to open valve with the controller indirect acting

D

Air to close valve with the controller direct acting

When an exothermic reversible reaction is conducted adiabatically, the rate of reaction

A

Continuously increases

B

Continuously decreases

C

Passes through a maximum

D

Passes through a minimum

Select the correct answer choice of the following Question : "At Lions High School 100 students are taking Chemistry and 80 students are taking Biology. If 20 students are taking both Chemistry and Biology, what is the ratio of the students taking only Chemistry to the number taking only Biology?

A

3/4

B

4/3

C

5/4

D

1/4

At Lions High school 100 students are taking chemistry and 80 students are taking Biology. If 20 students are taking both chemistry and Biology , what is the ratio of the students taking only chemistry to the number taking only Biology?

A

3/4

B

4/3

C

5/4

D

1/4

A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length

A

Decreases

B

Increases

C

Is at the highest allowable temperature throughout

D

First increases and then decreases

A typical example of an exothermic reversible reaction conducted at high pressure in industry is

A

Dehydration of ethanol

B

Methanol synthesis

C

Reformation of methane

D

Polymerisation of ethylene

With increase in temperature, the equilibrium conversion of a reversible exothermic reaction

A

Decreases

B

Increases

C

Remains unaffected

D

Decreases linearily with temperature

Fractional conversion __________ for an exothermic reversible chemical reaction, when the temperature is maximum.

A

Increases

B

Remains unchanged

C

Decreases

D

Unpredictable from the data

For high conversion in a highly exothermic solid catalysed reaction, use a __________ bed reactor.

A

Fixed

B

Fluidised bed reactor followed by a fixed

C

Fixed bed reactor followed by a fluidised

D

Fluidised

Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

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