For the reaction, ${{\rm{H}}_2} + {{\rm{I}}_2}\;\leftrightharpoons\;2{\rm{HI}}$, the equilibrium concentration of ${{\rm{H}}_2},{{\rm{I}}_2}\;{\rm{and}}\;\;{\rm{ HI}}$ are $8.0,\;3.0{\rm{ }}\;and{\rm{ }}\;28.0{\rm{ }}\;mol/L$ respectively. The equilibrium constant is

JEE CHEMISTRY MCQ: Equilibrium

1 Easy

1 of 1

Application +4 | -1

For the reaction,

{\mathrm{H}_2} + {\mathrm{I}_2}\;\leftrightharpoons\;2\mathrm{HI}

, the equilibrium concentration of

{\mathrm{H}_2},{\mathrm{I}_2}\;\mathrm{and}\;\;\mathrm{ HI}

are

8.0,\;3.0\mathrm{ }\;and\mathrm{ }\;28.0\mathrm{ }\;mol/L

respectively. The equilibrium constant is

View answer and explanation

Correct option: B

32.66

Option B (32.66) is correct because it is the equilibrium constant calculated from the given equilibrium concentrations using the equilibrium expression.

More Questions from Equilibrium

Practice All Chapter MCQs →

The indicator used in titrating oxalic acid with caustic soda solution is:

\mathrm{K}_1

and

\mathrm{K}_2

are equilibrium constant for reactions (i) and (ii)

\mathrm{N}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})\quad\ldots

(i)

\mathrm{NO}(\mathrm{g}) \rightleftharpoons \frac{1}{2} \mathrm{~N}_2(\mathrm{~g})+\frac{1}{2} \mathrm{O}_2(\mathrm{~g})\quad\ldots

(ii)

Then,

K{a_1},\,\,\,K{a_2}\,\,\,\mathrm{and}\,\,\,K{a_3}

are the respective ionisation constants for the following reactions

\begin{array}{l} {H_2}S\leftrightharpoons{H^ + } + H{S^ - }\\ H{S^ - }\leftrightharpoons{H^ + } + {S^{2 - }}\\ {H_2}S\leftrightharpoons2{H^ + } + {S^{2 - }} \end{array}

The correct relationship between

K{a_1},\,\,K{a_2}\,,K{a_3}

is The

\mathrm{pH}

0.1 \mathrm{~M}-\mathrm{N}_2 \mathrm{H}_4

solution is (For

\mathrm{N}_2 \mathrm{H}_4,

K_{{b}_1}=3.6 \times 10^{-6}, K_{{b}_2}=6.4 \times 10^{-12}, \log 2=0.3

\log 3=0.48

) Reaction

{\text{Ba}}{{\text{O}}_2}(s) \rightleftharpoons {\text{BaO}}(s) + {{\text{O}}_2}(g);\Delta H = - {\text{ve}}.

In equilibrium condition pressure of

\text{O}_2

depends on: A : At equilibrium concentration of the reactant and product does not change with time for a chemical reaction.
R: The rate of reaction is zero at equilibrium.