06. Application of Kp and Kc
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Chemical Equilibrium

229257 What will be the value of $\left[\mathrm{OH}^{-}\right]^{2}$ in the $0.1 \mathrm{M}$ solution of ammonium hydroxide having $K_{b}=$ $1.8 \times 10^{-5}$ ?

1 $1.8 \times 10^{-7}$
2 $1.8 \times 10^{-6}$
3 $1.8 \times 10^{-4}$
4 $1.8 \times 10^{-3}$
Chemical Equilibrium

229258 Consider the following statements with regard to chemical equilibrium -
1.Equilibrium constant is dependent of initial concentrations of reactants and products.
2.Equilibrium constant is independent of initial concentrations of reactants and products.
3.Equilibrium constant for the reverse reaction is equal to the inverse of the equilibrium constant for the forward reaction.
Which of the above statements are correct?

1 1 and 2 only
2 2 and 3 only
3 1 and 3 only
4 1,2 and 3
Chemical Equilibrium

229259 In a closed cylinder of capacity $24.6 \mathrm{~L}$, the following reaction occurs at $27^{\circ} \mathrm{C}$.
$\mathrm{A}_{2}(\mathrm{~s}) \rightleftharpoons \mathrm{B}_{2}(\mathrm{~s})+2 \mathrm{C}(\mathrm{g})$
At equilibrium, $1 \mathrm{~g}$ of $B_{2}(\mathrm{~s})$ (molor mass $=50 \mathrm{~g}$ mol $^{-1}$ ) is present. The equilibrium constant $K_{p}$ for the equilibrium in $\mathrm{atm}^{2}$ unit is
$\left(\mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$

1 $1.6 \times 10^{-2}$
2 $1.6 \times 10^{-5}$
3 $1.6 \times 10^{-3}$
4 $1.6 \times 10^{-4}$
5 $1.6 \times 10^{-1}$
Chemical Equilibrium

229262 Using the Gibbs energy change, $\Delta G^{0}=+63.3 \mathrm{~kJ}$ for the following reaction,
$\mathrm{Ag}_{2} \mathrm{CO}_{3}(\mathrm{~s}) \rightleftharpoons \mathbf{2 A g}^{+}(\mathrm{aq})+\mathrm{CO}_{3}^{2-}(\mathrm{aq})$
the $\mathrm{K}_{\mathrm{sp}}$ of $\mathrm{Ag}_{2} \mathrm{CO}_{3}(\mathrm{~s})$ is water at $25^{\circ} \mathrm{C}$ is $\left(\mathrm{R}=\mathbf{8 . 3 1 4} \mathrm{J} \mathrm{K}^{-1} \mathrm{~mol}^{-1}\right.$ )

1 $3.2 \times 10^{-26}$
2 $8.0 \times 10^{-12}$
3 $2.9 \times 10^{-3}$
4 $7.9 \times 10^{-2}$
Chemical Equilibrium

229257 What will be the value of $\left[\mathrm{OH}^{-}\right]^{2}$ in the $0.1 \mathrm{M}$ solution of ammonium hydroxide having $K_{b}=$ $1.8 \times 10^{-5}$ ?

1 $1.8 \times 10^{-7}$
2 $1.8 \times 10^{-6}$
3 $1.8 \times 10^{-4}$
4 $1.8 \times 10^{-3}$
Chemical Equilibrium

229258 Consider the following statements with regard to chemical equilibrium -
1.Equilibrium constant is dependent of initial concentrations of reactants and products.
2.Equilibrium constant is independent of initial concentrations of reactants and products.
3.Equilibrium constant for the reverse reaction is equal to the inverse of the equilibrium constant for the forward reaction.
Which of the above statements are correct?

1 1 and 2 only
2 2 and 3 only
3 1 and 3 only
4 1,2 and 3
Chemical Equilibrium

229259 In a closed cylinder of capacity $24.6 \mathrm{~L}$, the following reaction occurs at $27^{\circ} \mathrm{C}$.
$\mathrm{A}_{2}(\mathrm{~s}) \rightleftharpoons \mathrm{B}_{2}(\mathrm{~s})+2 \mathrm{C}(\mathrm{g})$
At equilibrium, $1 \mathrm{~g}$ of $B_{2}(\mathrm{~s})$ (molor mass $=50 \mathrm{~g}$ mol $^{-1}$ ) is present. The equilibrium constant $K_{p}$ for the equilibrium in $\mathrm{atm}^{2}$ unit is
$\left(\mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$

1 $1.6 \times 10^{-2}$
2 $1.6 \times 10^{-5}$
3 $1.6 \times 10^{-3}$
4 $1.6 \times 10^{-4}$
5 $1.6 \times 10^{-1}$
Chemical Equilibrium

229262 Using the Gibbs energy change, $\Delta G^{0}=+63.3 \mathrm{~kJ}$ for the following reaction,
$\mathrm{Ag}_{2} \mathrm{CO}_{3}(\mathrm{~s}) \rightleftharpoons \mathbf{2 A g}^{+}(\mathrm{aq})+\mathrm{CO}_{3}^{2-}(\mathrm{aq})$
the $\mathrm{K}_{\mathrm{sp}}$ of $\mathrm{Ag}_{2} \mathrm{CO}_{3}(\mathrm{~s})$ is water at $25^{\circ} \mathrm{C}$ is $\left(\mathrm{R}=\mathbf{8 . 3 1 4} \mathrm{J} \mathrm{K}^{-1} \mathrm{~mol}^{-1}\right.$ )

1 $3.2 \times 10^{-26}$
2 $8.0 \times 10^{-12}$
3 $2.9 \times 10^{-3}$
4 $7.9 \times 10^{-2}$
Chemical Equilibrium

229257 What will be the value of $\left[\mathrm{OH}^{-}\right]^{2}$ in the $0.1 \mathrm{M}$ solution of ammonium hydroxide having $K_{b}=$ $1.8 \times 10^{-5}$ ?

1 $1.8 \times 10^{-7}$
2 $1.8 \times 10^{-6}$
3 $1.8 \times 10^{-4}$
4 $1.8 \times 10^{-3}$
Chemical Equilibrium

229258 Consider the following statements with regard to chemical equilibrium -
1.Equilibrium constant is dependent of initial concentrations of reactants and products.
2.Equilibrium constant is independent of initial concentrations of reactants and products.
3.Equilibrium constant for the reverse reaction is equal to the inverse of the equilibrium constant for the forward reaction.
Which of the above statements are correct?

1 1 and 2 only
2 2 and 3 only
3 1 and 3 only
4 1,2 and 3
Chemical Equilibrium

229259 In a closed cylinder of capacity $24.6 \mathrm{~L}$, the following reaction occurs at $27^{\circ} \mathrm{C}$.
$\mathrm{A}_{2}(\mathrm{~s}) \rightleftharpoons \mathrm{B}_{2}(\mathrm{~s})+2 \mathrm{C}(\mathrm{g})$
At equilibrium, $1 \mathrm{~g}$ of $B_{2}(\mathrm{~s})$ (molor mass $=50 \mathrm{~g}$ mol $^{-1}$ ) is present. The equilibrium constant $K_{p}$ for the equilibrium in $\mathrm{atm}^{2}$ unit is
$\left(\mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$

1 $1.6 \times 10^{-2}$
2 $1.6 \times 10^{-5}$
3 $1.6 \times 10^{-3}$
4 $1.6 \times 10^{-4}$
5 $1.6 \times 10^{-1}$
Chemical Equilibrium

229262 Using the Gibbs energy change, $\Delta G^{0}=+63.3 \mathrm{~kJ}$ for the following reaction,
$\mathrm{Ag}_{2} \mathrm{CO}_{3}(\mathrm{~s}) \rightleftharpoons \mathbf{2 A g}^{+}(\mathrm{aq})+\mathrm{CO}_{3}^{2-}(\mathrm{aq})$
the $\mathrm{K}_{\mathrm{sp}}$ of $\mathrm{Ag}_{2} \mathrm{CO}_{3}(\mathrm{~s})$ is water at $25^{\circ} \mathrm{C}$ is $\left(\mathrm{R}=\mathbf{8 . 3 1 4} \mathrm{J} \mathrm{K}^{-1} \mathrm{~mol}^{-1}\right.$ )

1 $3.2 \times 10^{-26}$
2 $8.0 \times 10^{-12}$
3 $2.9 \times 10^{-3}$
4 $7.9 \times 10^{-2}$
Chemical Equilibrium

229257 What will be the value of $\left[\mathrm{OH}^{-}\right]^{2}$ in the $0.1 \mathrm{M}$ solution of ammonium hydroxide having $K_{b}=$ $1.8 \times 10^{-5}$ ?

1 $1.8 \times 10^{-7}$
2 $1.8 \times 10^{-6}$
3 $1.8 \times 10^{-4}$
4 $1.8 \times 10^{-3}$
Chemical Equilibrium

229258 Consider the following statements with regard to chemical equilibrium -
1.Equilibrium constant is dependent of initial concentrations of reactants and products.
2.Equilibrium constant is independent of initial concentrations of reactants and products.
3.Equilibrium constant for the reverse reaction is equal to the inverse of the equilibrium constant for the forward reaction.
Which of the above statements are correct?

1 1 and 2 only
2 2 and 3 only
3 1 and 3 only
4 1,2 and 3
Chemical Equilibrium

229259 In a closed cylinder of capacity $24.6 \mathrm{~L}$, the following reaction occurs at $27^{\circ} \mathrm{C}$.
$\mathrm{A}_{2}(\mathrm{~s}) \rightleftharpoons \mathrm{B}_{2}(\mathrm{~s})+2 \mathrm{C}(\mathrm{g})$
At equilibrium, $1 \mathrm{~g}$ of $B_{2}(\mathrm{~s})$ (molor mass $=50 \mathrm{~g}$ mol $^{-1}$ ) is present. The equilibrium constant $K_{p}$ for the equilibrium in $\mathrm{atm}^{2}$ unit is
$\left(\mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)$

1 $1.6 \times 10^{-2}$
2 $1.6 \times 10^{-5}$
3 $1.6 \times 10^{-3}$
4 $1.6 \times 10^{-4}$
5 $1.6 \times 10^{-1}$
Chemical Equilibrium

229262 Using the Gibbs energy change, $\Delta G^{0}=+63.3 \mathrm{~kJ}$ for the following reaction,
$\mathrm{Ag}_{2} \mathrm{CO}_{3}(\mathrm{~s}) \rightleftharpoons \mathbf{2 A g}^{+}(\mathrm{aq})+\mathrm{CO}_{3}^{2-}(\mathrm{aq})$
the $\mathrm{K}_{\mathrm{sp}}$ of $\mathrm{Ag}_{2} \mathrm{CO}_{3}(\mathrm{~s})$ is water at $25^{\circ} \mathrm{C}$ is $\left(\mathrm{R}=\mathbf{8 . 3 1 4} \mathrm{J} \mathrm{K}^{-1} \mathrm{~mol}^{-1}\right.$ )

1 $3.2 \times 10^{-26}$
2 $8.0 \times 10^{-12}$
3 $2.9 \times 10^{-3}$
4 $7.9 \times 10^{-2}$