Chemical EquilibriaMedium

Equilibrium constant K<sub>c</sub>

For: N₂(g) + 3H₂(g) ⇌ 2NH₃(g), equilibrium concentrations:
[N₂] = 0.50 M, [H₂] = 0.80 M, [NH₃] = 0.30 M. Calculate K_c.

Given data

[N₂] = 0.50 M[H₂] = 0.80 M[NH₃] = 0.30 M

Steps

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Write the K_c expression.
Write your working — the numerical result must appear in the text
Calculate K_c.

Full worked solution

Write the K_c expression.
$K_c = \frac{[NH_3]^2}{[N_2][H_2]^3}$
K_c expression.
Calculate K_c.
$\frac{0.30^2}{0.50 \cdot 0.80^3}$
K_c = 0.09 / (0.50 × 0.512) = 0.352.

Result:K_c = 0.352.

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