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Standard XII

Chemistry

Reaction Quotient

Equilibrium c...

Question

Equilibrium constant, $K_{c}$ for the reaction
$N_{2} (g) + 3 H_{2} (g) ⇌ 2 {N H}_{3} (g)$ at $500 K$ is $0.061$
At a particular time, the analysis shows that composition of the reaction mixture is $3.0 m o l$ $L^{- 1}$ $N_{2}$ , $2.0 m o l$ $L^{- 1}$ $H_{2}$ and $0.5 m o l$ $L^{- 1}$ ${N H}_{3}$ . Is the reaction at equilirbium? IF not in which direction does the reaction tend to proceed to reach equilibrium?

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Solution

The given reaction is:
$N_{2 (g)} + 3 H_{2 (g)} ⟷ 2 N H_{3 (g)}$
At a particular time $3.0 m o l L^{- 1}$ $2.0 m o l L^{- 1}$ $0.5 m o l L^{- 1}$
Now we know that,

$Q_{C} = \frac{{[N H_{3}]}_{3}^{2}}{[N_{2}] {[H_{2}]}_{2}^{3}}$

$Q_{C} = \frac{{[0.5]}^{2}}{[3.0] {[2.0]}^{3}}$

$Q_{C} = 0.0104$
it is given that, $K_{C} = 0.061$
since $Q_{C} \neq K_{C}$ , the reaction not at equilibrium.
since $Q_{C} < K_{C}$ , the reaction will proceed in the forward direction to reach equilibrium.

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Similar questions

Equilibrium constant, $K_{c}$ for the reaction.

$N_{2} (g) + 3 H_{2} (g \leftrightarrow 2 N H_{3} (g)$ at 500 K is 0.061.
At a particular time, the analysis shows that composition of the reaction mixture is 3.0 mol $L^{- 1} N_{2}, 2.0 m o l L^{- 1} H_{2}$ and 0.5 mol $L^{- 1} N H_{3}$ , Is the reaction at equilibrium? If not in which direction does the reaction tend to proceed to reach equilibrium?

Q. Equilibrium constant,

K_{C}

for the reaction at

500 K

0.061

N_{2} (g) + 3 H_{2} (g) ⇌ 2 N H_{3} (g)

. At a particular time, the analysis shows that composition of the reaction mixture is

3.0 m o l L^{- 1}

N_{2},

2.0 m o l L^{- 1} H_{2}

and

0.5 m o l L^{- 1} N H_{3}

. Is the reaction at equilibrium and if not in which direction does the reaction tend to proceed to reach equilibrium?

Q. Equilibrium constant,

K_{c}

for the reaction,

N_{2 (g)} + 3 H_{2 (g)} ⇌ 2 N H_{3 (g)}

; at

500 K

0.061 l i t r e^{2} m o l e^{- 2}

. At a particular time, the analysis shows that composition of the reaction mixture is

3.00 m o l l i t r e^{- 1}

N^{2}

2.00 m o l l i t r e^{- 1}

H_{2}

, and

0.500 m o l l i t r e^{- 1}

N H_{3}

. Is the reaction at equilibrium? If not, in which direction does the reaction tend to proceed to reach equilibrium?

Equilibrium constant, K_c for the reaction

at 500 K is 0.061.

At a particular time, the analysis shows that composition of the reaction mixture is 3.0 mol L^–1 N₂, 2.0 mol L^–1 H₂ and 0.5 mol L^–1 NH₃. Is the reaction at equilibrium? If not in which direction does the reaction tend to proceed to reach equilibrium?

Q. Equilibrium constant,

K_{C}

for the reaction

N_{2} (g) + 3 H_{2} (g) ⇌ 2 N H_{3} (g)

500 K

0.061

At a particular time, the analysis shows that composition of the reaction mixture is

3.0 m o l L^{- 1} N_{2}, 2.0 m o l L^{- 1} H_{2}

and

0.5 m o l L^{- 1} N H_{3} .

Is the reaction at equilibirium and if not in which direction does the reaction tend to proceed to reach equilibrium?

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