06. Application of Kp and Kc
Chemical Equilibrium

229279 For the reaction,
$2 \mathrm{~A}(\mathrm{~g})+\mathrm{B}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{AB}_{2}(\mathrm{~g})$
the equilibrium constant, $K_{p}$ at $300 \mathrm{~K}$ is 16.0. The value of $K_{p}$ for $A B_{2}(g) \rightleftharpoons \quad A(g)+1 / 2 B_{2}(g)$ is

1 8
2 0.25
3 0.125
4 32
Chemical Equilibrium

229280 For the reaction,
$\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})$ at $400 \mathrm{~K}, \mathrm{~K}_{\mathrm{p}}=41$. Find the value of $K_{p}$ for the following reaction.
$\frac{\mathbf{1}}{\mathbf{2}} \mathbf{N}_{\mathbf{2}}(\mathrm{g})+\frac{\mathbf{3}}{\mathbf{2}} \mathbf{H}_{\mathbf{2}}(\mathrm{g}) \rightleftharpoons \mathbf{N H}_{\mathbf{3}}(\mathrm{g})$

1 6.4
2 0.02
3 50
4 4.6
Chemical Equilibrium

229282 In which of the following reactions $K_{p}>K_{c}$ ?

1 $\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{NH}_{3}(\mathrm{~g})$
2 $\mathrm{H}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{HI}(\mathrm{g})$
3 $\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \quad \mathrm{PCl}_{5}(\mathrm{~g})$
4 $2 \mathrm{SO}_{3}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g})$
Chemical Equilibrium

229283 What is the effect of a ten-fold increase in pressure on $K_{p}$ in the reaction $\mathbf{N}_{2}(\mathrm{~g})+\mathbf{3} \mathbf{H}_{2}(\mathrm{~g}) \rightleftharpoons \mathbf{2} \mathbf{N H}_{3}(\mathrm{~g})$ at equilibrium?

1 A ten-fold increase
2 A ten-fold decrease
3 No change
4 Equal to $\mathrm{K}_{\mathrm{c}}$
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Chemical Equilibrium

229279 For the reaction,
$2 \mathrm{~A}(\mathrm{~g})+\mathrm{B}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{AB}_{2}(\mathrm{~g})$
the equilibrium constant, $K_{p}$ at $300 \mathrm{~K}$ is 16.0. The value of $K_{p}$ for $A B_{2}(g) \rightleftharpoons \quad A(g)+1 / 2 B_{2}(g)$ is

1 8
2 0.25
3 0.125
4 32
Chemical Equilibrium

229280 For the reaction,
$\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})$ at $400 \mathrm{~K}, \mathrm{~K}_{\mathrm{p}}=41$. Find the value of $K_{p}$ for the following reaction.
$\frac{\mathbf{1}}{\mathbf{2}} \mathbf{N}_{\mathbf{2}}(\mathrm{g})+\frac{\mathbf{3}}{\mathbf{2}} \mathbf{H}_{\mathbf{2}}(\mathrm{g}) \rightleftharpoons \mathbf{N H}_{\mathbf{3}}(\mathrm{g})$

1 6.4
2 0.02
3 50
4 4.6
Chemical Equilibrium

229282 In which of the following reactions $K_{p}>K_{c}$ ?

1 $\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{NH}_{3}(\mathrm{~g})$
2 $\mathrm{H}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{HI}(\mathrm{g})$
3 $\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \quad \mathrm{PCl}_{5}(\mathrm{~g})$
4 $2 \mathrm{SO}_{3}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g})$
Chemical Equilibrium

229283 What is the effect of a ten-fold increase in pressure on $K_{p}$ in the reaction $\mathbf{N}_{2}(\mathrm{~g})+\mathbf{3} \mathbf{H}_{2}(\mathrm{~g}) \rightleftharpoons \mathbf{2} \mathbf{N H}_{3}(\mathrm{~g})$ at equilibrium?

1 A ten-fold increase
2 A ten-fold decrease
3 No change
4 Equal to $\mathrm{K}_{\mathrm{c}}$
Chemical Equilibrium

229279 For the reaction,
$2 \mathrm{~A}(\mathrm{~g})+\mathrm{B}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{AB}_{2}(\mathrm{~g})$
the equilibrium constant, $K_{p}$ at $300 \mathrm{~K}$ is 16.0. The value of $K_{p}$ for $A B_{2}(g) \rightleftharpoons \quad A(g)+1 / 2 B_{2}(g)$ is

1 8
2 0.25
3 0.125
4 32
Chemical Equilibrium

229280 For the reaction,
$\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})$ at $400 \mathrm{~K}, \mathrm{~K}_{\mathrm{p}}=41$. Find the value of $K_{p}$ for the following reaction.
$\frac{\mathbf{1}}{\mathbf{2}} \mathbf{N}_{\mathbf{2}}(\mathrm{g})+\frac{\mathbf{3}}{\mathbf{2}} \mathbf{H}_{\mathbf{2}}(\mathrm{g}) \rightleftharpoons \mathbf{N H}_{\mathbf{3}}(\mathrm{g})$

1 6.4
2 0.02
3 50
4 4.6
Chemical Equilibrium

229282 In which of the following reactions $K_{p}>K_{c}$ ?

1 $\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{NH}_{3}(\mathrm{~g})$
2 $\mathrm{H}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{HI}(\mathrm{g})$
3 $\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \quad \mathrm{PCl}_{5}(\mathrm{~g})$
4 $2 \mathrm{SO}_{3}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g})$
Chemical Equilibrium

229283 What is the effect of a ten-fold increase in pressure on $K_{p}$ in the reaction $\mathbf{N}_{2}(\mathrm{~g})+\mathbf{3} \mathbf{H}_{2}(\mathrm{~g}) \rightleftharpoons \mathbf{2} \mathbf{N H}_{3}(\mathrm{~g})$ at equilibrium?

1 A ten-fold increase
2 A ten-fold decrease
3 No change
4 Equal to $\mathrm{K}_{\mathrm{c}}$
Chemical Equilibrium

229279 For the reaction,
$2 \mathrm{~A}(\mathrm{~g})+\mathrm{B}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{AB}_{2}(\mathrm{~g})$
the equilibrium constant, $K_{p}$ at $300 \mathrm{~K}$ is 16.0. The value of $K_{p}$ for $A B_{2}(g) \rightleftharpoons \quad A(g)+1 / 2 B_{2}(g)$ is

1 8
2 0.25
3 0.125
4 32
Chemical Equilibrium

229280 For the reaction,
$\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})$ at $400 \mathrm{~K}, \mathrm{~K}_{\mathrm{p}}=41$. Find the value of $K_{p}$ for the following reaction.
$\frac{\mathbf{1}}{\mathbf{2}} \mathbf{N}_{\mathbf{2}}(\mathrm{g})+\frac{\mathbf{3}}{\mathbf{2}} \mathbf{H}_{\mathbf{2}}(\mathrm{g}) \rightleftharpoons \mathbf{N H}_{\mathbf{3}}(\mathrm{g})$

1 6.4
2 0.02
3 50
4 4.6
Chemical Equilibrium

229282 In which of the following reactions $K_{p}>K_{c}$ ?

1 $\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{NH}_{3}(\mathrm{~g})$
2 $\mathrm{H}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{HI}(\mathrm{g})$
3 $\mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g}) \rightleftharpoons \quad \mathrm{PCl}_{5}(\mathrm{~g})$
4 $2 \mathrm{SO}_{3}(\mathrm{~g}) \rightleftharpoons \quad 2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g})$
Chemical Equilibrium

229283 What is the effect of a ten-fold increase in pressure on $K_{p}$ in the reaction $\mathbf{N}_{2}(\mathrm{~g})+\mathbf{3} \mathbf{H}_{2}(\mathrm{~g}) \rightleftharpoons \mathbf{2} \mathbf{N H}_{3}(\mathrm{~g})$ at equilibrium?

1 A ten-fold increase
2 A ten-fold decrease
3 No change
4 Equal to $\mathrm{K}_{\mathrm{c}}$