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Analysis of a reaction mixture showed that it had the composition 0.411 mol/l n2, 0.541 mol/l h2, and 0.12 mol/l nh3 at 800 k, at which temperature kc = 0.278 for n2(g) + 3 h2(g) ⇀↽ 2 nh3(g). calculate the reaction quotient qc .

Respuesta :

Answer: The reaction quotient [tex]Q_c[/tex] = 0.221.

Explanation:

[tex]Q_c<K_c[/tex] , equilibrium will move in forward direction

[tex]Q_c=K_c[/tex] , equilibrium is attained

[tex]Q_c>K_c[/tex], equilibrium will move in backward direction

Now, according to question

[tex]N_2+3H_2\rightleftharpoons 2NH_3[/tex]

Given:

[tex]K_c[/tex] of the reaction is 0.278 at 800 K

[tex][N_2]=0.411 mol/L ,[H_2]=0.541 mol/L, ,[NH_3]=0.12 mol/L[/tex]

[tex]Q_c=\frac{[NH_3]^2}{[H_2]^3[N_2]}=\frac{0.12\times 0.12}{(0.541)^3\times 0.411}=0.221[/tex]

The reaction quotient [tex]Q_c[/tex] = 0.221.

The value of [tex]Q_c<K_c[/tex] which means that reaction is going in forward direction

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