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

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

NTA AbhyasNTA Abhyas 2020The s-Block Elements

Solution:

$H_{2}\left(\right.g\left.\right) \rightarrow 2H\left(\right.g\left.\right)$

As temperature increases and pressure decreases, formation of atomic H increases. As it is endothermic process and volume is increasing so high temperature and low pressure are favourable for forward reaction.