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

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

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

A

Decreases

B

Increases

C

Remains unaffected

D

Decreases linearily with temperature

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

A

Temperature should be high in the beginning and decreased towards the end of the reaction

B

Very low temperature should be used throughout the reaction

C

Very high temperature should be used throughout the reaction

D

None of these

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

The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process.

A

Isobaric

B

Isothermal

C

Adiabatic

D

None of these

In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.

A

Equal to

B

Less than

C

More than

D

None of these

Which of the following is a characteristic of an exothermic reaction?

A

Release of heat

B

Absorption of heat

C

Doesn't involve any change in temperature

D

None of the option is correct

What is an exothermic reaction?

A

Reaction in which heat is released.

B

Reaction in which heat is absorbed.

C

Reaction in which neither heat is released nor absorbed.

D

None

In case of staged packed bed reactors carrying out exothermic reaction, use

A

High recycle for pure gas

B

Plug flow for dilute liquid requiring no large preheating of feed

C

Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature

D

All of the above

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

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