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Properties of Water

In the atmosp...

Question

In the atmosphere, the conversion of $S O_{2}$ to $S O_{3}$ is a favourable reaction and it contributes to acid rain. But, in industry, a catalyst is essential for the process. Give reason.

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Solution

$2 S O_{2} + O_{2} \to 2 S O_{3}$
This reaction occurs at high temperatures in the atmosphere. But in industries, we must choose cost efficient process. So to not use high temperatures, we use $V_{2} O_{5}$ catalyst for the reaction.

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