Under what conditions of temperature and pressure, the formation of molecular hydrogen from atomic hydrogen will be favoured most?

High temperature and high pressure

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Low temperature and low pressure

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High temperature and low pressure

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Low temperature and high pressure

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Solution

The correct option is B Low temperature and high pressure
Reaction:
$2 H \to H_{2} + heat$
So, according to Le Chatelier's principle, low temperature and high pressure is favored.

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