Medium
At a definite temperature,the equilibrium constant $K_{c}$ is given by the following equation: $K_{c} = \frac{[I_{2}][H_{5}IO_{6}]^{5}}{[IO_{3}^{-}]^{7}[H_{2}O]^{9}[H^{+}]^{7}}$. Write the balanced chemical equilibrium equation.
(N/A) The equilibrium constant expression is defined as the ratio of the product of concentrations of products to the product of concentrations of reactants,each raised to the power of their stoichiometric coefficients.
From the given expression $K_{c} = \frac{[I_{2}][H_{5}IO_{6}]^{5}}{[IO_{3}^{-}]^{7}[H_{2}O]^{9}[H^{+}]^{7}}$,the products are $I_{2}$ and $H_{5}IO_{6}$ with coefficients $1$ and $5$ respectively.
The reactants are $IO_{3}^{-}$,$H_{2}O$,and $H^{+}$ with coefficients $7$,$9$,and $7$ respectively.
Thus,the balanced chemical equilibrium equation is:
$7IO_{3(aq)}^{-} + 9H_{2}O_{(l)} + 7H_{(aq)}^{+} \rightleftharpoons I_{2(aq)} + 5H_{5}IO_{6(aq)}$
From the given expression $K_{c} = \frac{[I_{2}][H_{5}IO_{6}]^{5}}{[IO_{3}^{-}]^{7}[H_{2}O]^{9}[H^{+}]^{7}}$,the products are $I_{2}$ and $H_{5}IO_{6}$ with coefficients $1$ and $5$ respectively.
The reactants are $IO_{3}^{-}$,$H_{2}O$,and $H^{+}$ with coefficients $7$,$9$,and $7$ respectively.
Thus,the balanced chemical equilibrium equation is:
$7IO_{3(aq)}^{-} + 9H_{2}O_{(l)} + 7H_{(aq)}^{+} \rightleftharpoons I_{2(aq)} + 5H_{5}IO_{6(aq)}$
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An equilibrium mixture of the reaction $2H_2S_{(g)} \rightleftharpoons 2H_{2(g)} + S_{2(g)}$ had $0.5 mol$ $H_2S$,$0.10 mol$ $H_2$,and $0.4 mol$ $S_2$ in a $1 L$ vessel. The value of the equilibrium constant $(K_c)$ in $mol L^{-1}$ is:
MediumIIT 1992
View SolutionFor the gaseous reaction,equilibrium constant is given:
$XeF_6 + H_2O \rightleftharpoons XeOF_4 + 2HF, K_1$
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The equilibrium constant for the reaction:
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Medium
View SolutionAt $T \ K$,the $K_C$ value for the reaction $\frac{1}{3} N_{2(g)} + H_{2(g)} \rightleftharpoons \frac{2}{3} NH_{3(g)}$ is $50$. The $K_C$ value for the reaction $2 NH_{3(g)} \rightleftharpoons N_{2(g)} + 3 H_{2(g)}$ at the same temperature is:
The equilibrium constants for some reactions are given below:
$(1)$ $x \rightleftharpoons y ; K = 10^{-1}$
$(2)$ $y \rightleftharpoons z ; K = 2 \times 10^{-2}$
$(3)$ $p \rightleftharpoons Q ; K = 3 \times 10^{-4}$
$(4)$ $R \rightleftharpoons S ; K = 2 \times 10^{-3}$
The initial concentrations of reactants are taken to be the same for each reaction. Which of the above reactions indicate that the reaction mixture contains high concentrations of reactants and products respectively?
$(1)$ $x \rightleftharpoons y ; K = 10^{-1}$
$(2)$ $y \rightleftharpoons z ; K = 2 \times 10^{-2}$
$(3)$ $p \rightleftharpoons Q ; K = 3 \times 10^{-4}$
$(4)$ $R \rightleftharpoons S ; K = 2 \times 10^{-3}$
The initial concentrations of reactants are taken to be the same for each reaction. Which of the above reactions indicate that the reaction mixture contains high concentrations of reactants and products respectively?
Difficult
View SolutionThe figure shows the change in concentration of species $A$ and $B$ as a function of time. The equilibrium constant $K_C$ for the reaction $2A_{(g)} \rightleftharpoons B_{(g)}$ is
Medium
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