(B) The relationship between $K_P$ and $K_C$ is given by $K_P = K_C(RT)^{\Delta n_g}$,where $\Delta n_g$ is the change in the number of moles of gaseo

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$2C_{(s)} + O_{2(g)} \rightleftharpoons 2CO_{(g)}$

(B) The relationship between $K_P$ and $K_C$ is given by $K_P = K_C(RT)^{\Delta n_g}$,where $\Delta n_g$ is the change in the number of moles of gaseous products and reactants. $K_P$ and $K_C$ are different when $\Delta n_g \neq 0$. For option $B$: $2C_{(s)} + O_{2(g)} \rightleftharpoons 2CO_{(g)}$,$\Delta n_g = 2 - 1 = 1$. Since $\Delta n_g = 1 \neq 0$,$K_P$ and $K_C$ are different for this reaction.

Class 11 Chemistry 6-1.Equilibrium (Chemical Equilibrium)Kp and Kc Relationship

Difficult

For which of the following equilibria are $K_P$ and $K_C$ different?

A
$N_{2(g)} + O_{2(g)} \rightleftharpoons 2NO_{(g)}$
B
$2C_{(s)} + O_{2(g)} \rightleftharpoons 2CO_{(g)}$
C
$PCl_{5(g)} \rightleftharpoons PCl_{3(g)} + Cl_{2(g)}$
D
$H_{2(g)} + I_{2(g)} \rightleftharpoons 2HI_{(g)}$

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6-1.Equilibrium (Chemical Equilibrium)

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Kp and Kc Relationship

For a reversible reaction $A \rightleftharpoons B$,the half-life periods of the forward and backward reactions are $15 \ s$ and $18 \ s$,respectively. If both reactions follow first-order kinetics,what is the equilibrium constant $(K_c)$ of the reaction?

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For the reaction $N_2O_{4(g)} \rightleftharpoons 2NO_{2(g)}$,the value of $\frac{K_c}{K_p}$ is:

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$0.1 \ mol$ of $N_2O_{4(g)}$ was sealed in a tube under $1 \ atm$ pressure at $25\,^oC$. Calculate the number of moles of $NO_{2(g)}$ present,if the equilibrium $N_2O_{4(g)} \rightleftharpoons 2NO_{2(g)}$ $(K_p = 0.14)$ is reached.

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For the reaction $N_2 + 3H_2 \rightleftharpoons 2NH_3$,the equilibrium constant is $K$. What will be the equilibrium constant for the reaction $NH_3 \rightleftharpoons \frac{1}{2}N_2 + \frac{3}{2}H_2$?

Medium

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The equilibrium constant $K_c$ for the reaction $HA + B \rightleftharpoons BH^{+} + A^{-}$ is $100$. If the rate constant for the forward reaction is $10^5$,then the rate constant for the backward reaction is:

MediumAIPMT 2002

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For which of the following equilibria are $K_P$ and $K_C$ different?

Similar Questions

For a reversible reaction $A \rightleftharpoons B$,the half-life periods of the forward and backward reactions are $15 \ s$ and $18 \ s$,respectively. If both reactions follow first-order kinetics,what is the equilibrium constant $(K_c)$ of the reaction?

For the reaction $N_2O_{4(g)} \rightleftharpoons 2NO_{2(g)}$,the value of $\frac{K_c}{K_p}$ is:

$0.1 \ mol$ of $N_2O_{4(g)}$ was sealed in a tube under $1 \ atm$ pressure at $25\,^oC$. Calculate the number of moles of $NO_{2(g)}$ present,if the equilibrium $N_2O_{4(g)} \rightleftharpoons 2NO_{2(g)}$ $(K_p = 0.14)$ is reached.

For the reaction $N_2 + 3H_2 \rightleftharpoons 2NH_3$,the equilibrium constant is $K$. What will be the equilibrium constant for the reaction $NH_3 \rightleftharpoons \frac{1}{2}N_2 + \frac{3}{2}H_2$?

The equilibrium constant $K_c$ for the reaction $HA + B \rightleftharpoons BH^{+} + A^{-}$ is $100$. If the rate constant for the forward reaction is $10^5$,then the rate constant for the backward reaction is:

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