In the formation of nitric acid, $N_{2}$ and $O_{2}$ are made to combine. Which of the following condition will favour the formation of $N O$ ?
$N_{2} + O_{2} ⇌ 2 N O + H e a t$

Low temperature

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High temperature

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Freezing point

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All are favourable

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Solution

The correct option is A Low temperature
The low temperature will favor the formation of $N O$ .
The reaction is an exothermic reaction as heat is on products side. When the temperature is lowered, the equilibrium will shift in the forward direction which will produce more and more heat. This will minimize the effect of low temperature and is in accordance with Le-Chatelier's principle.

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Similar questions

N_{2} + O_{2} ⇋ 2 N O . Δ H = 43.200 k c a l

N_{2} + O_{2} ⇌ 2 N O

N_{2} + O_{2} ⇋ 2 N O +

N O

2 N O ⇌ N_{2} + O_{2}; Δ H = - 43.5 k c a l

N_{2} + O_{2} ⇌ 2 N O ?

N_{2} + O_{2}

⇌

2 N O - H e a t

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