The equilibrium constant K p for the reaction N 2 g -3 H 2 g - 2 N H 3 g is-A- 1 Invalid EquationB- 1 Invalid EquationC- -N H3-2-N2-H2-3D -N H 3-N2-3 H2-3

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Law of Mass Action

The equilibri...

Question

The equilibrium constant $K_{p}$ for the reaction $N_{2}$ (g) + 3 $H_{2}$ (g) $⇋$ $2 N H_{3}$ (g) is:

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Solution

The correct option is A

For reactions having only gaseous species, the concentration of each species will be directly proportional to its partial pressure. According to the ideal gas equation (for each component) p = cRT

$N_{2} (g) + 3 H_{2}$ (g) ⇌ $2 N H_{3}$ (g)
$K_{p} = \frac{(P_{N H_{3}})^{2}}{(P_{N_{2}}) (P_{H_{2}})^{3}}$
Similarly, for the reaction
$P C l_{5}$ (g) $⇌$ $P C l_{3}$ (g) + $C l_{2}$ (g)
$K_{p}$ = $\frac{P_{P C L_{3}} \times P_{C l_{2}}}{P_{P C l_{5}}}$
For $H_{2}$ (g) + $I_{2}$ (g) $⇌$ 2HI (g)
$K_{p}$ = $\frac{(P_{H I})^{2}}{(P_{H_{2}}) (P_{I_{2}})}$

In each example, the partial pressure is raised to the power of the corresponding stoichiometric coefficient from the balanced chemical equation.

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Similar questions

The equilibrium constant $K_{c}$ for the reaction $N_{2}$ (g) + 3 $H_{2}$ (g) $⇋$ 2 $N H_{3}$ (g) is:

For thedecomposition reaction 4 $H N O_{3}$ (g) $⇋$ 4 $N O_{2}$ (g) + 2 $H_{2}$ O (g) + $O_{2}$ (g) if we start with only the reactant $H N O_{3}$ and p = equilibrium pressure, the equilibrium constant $K_{p}$ is:

Q. Assertion :For reaction

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

Unit of

K_{C} = L^{2} {m o l}^{- 2}

Reason: For the reaction

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

, Equilibrium constant

K_{C} = \frac{{[{N H}_{3}]}^{2}}{[N_{2}] {[H_{2}]}^{3}}

Q. For the chemical reaction

N_{2}

(g) +

3 H_{2}

(g)

⇌

2 N H_{3}

(g)
The correct option is:

Q. The following concentration were obtained for the formation of

N H_{3}

form

N_{2}

and

H_{2}

at equilibrium for the reaction

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

[N_{2}] = 1.5 \times 10^{- 2} M

[H_{2}] = 3.0 \times 10^{- 2} M

[N H_{3}] = 1.2 \times 10^{- 2} M

Calculate equilibrium constant.

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The equilibrium constant Kp for the reaction N2 (g) + 3H2 (g) ⇋ 2NH3 (g) is:

The equilibrium constant $K_{p}$ for the reaction $N_{2}$ (g) + 3 $H_{2}$ (g) $⇋$ $2 N H_{3}$ (g) is: