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Question

What pressure is maintained in the contact tower?


A

High pressure of 50 atm

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B

Very high pressure of 200 atm

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C

Low pressure of 2 atm

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D

Very low pressure of 0.1 atm

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Solution

The correct option is C

Low pressure of 2 atm


A high pressure would have favored more SO3 in the catalytic oxidation of SO2 but builing such towers withstand high pressures is extremely difficult, Hence a pressure of 1 to 2 atm is maintained.


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