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Introduction to Le Chatelier's Principle

K P for the r...

Question

$K_{P}$ for the reaction ${N H}_{4} H S (s) ⇌ {N H}_{3} (g) + H_{2} S (g)$ at certain temperature is $4 {b a r}^{2}$ . Calculate the equilibrium pressure.

2

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4

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3.2

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Solution

The correct option is A $4$
$N H_{4} H S ⇌ N H_{3} + H_{2} S$
$P$ $P$
$K P = P^{2} = 4$
$\Rightarrow P = 2$
$∴$ Equilibrium pressure
$= 2 P$
$= 4 b a r$

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