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Question

How much pressure should be maintained during the synthesis of ammonia by Haber's process?

A
100 atm
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B
200 atm
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C
800 atm
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D
950 atm
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Solution

The correct option is B 200 atm
In order to obtain the maximum yield of ammonia during the synthesis of ammonia by Haber process, hydrogen and nitrogen are combined at a high pressure of 200 atm. The temperature is also high and is maintained at around 450°C. Iron based catalyst is used to speed up the reaction.

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