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Law of Mass Action

For the equil...

Question

For the equilibrium
$N_{2} (g) + 3 H_{2} (g) \Leftrightarrow 2 N H_{3} (g)$ at $1000^{o}$ C
the equilibrium constant is very low, then which of the following is correct at equilibrium?

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Solution

According to the problem:-
$N H_{4} H S (S) \Leftrightarrow N H_{3} (g) + H_{2} S (g)$
hence,
$k p = P (N H_{3}) \times P (H_{2} S)$

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