For the reaction, H2+I2 ⇌2 HI the equilibrium concentration of H2, I2 and HI are 8.0, 3.0 and 28

step 1 In this problem, we have given that H2 reacts with I2 reversibly to give 2 moles of HI. And we h

For the reaction, H2+I2 ⇌2 HI the equilibrium concentration...

For the reaction, $\mathrm{H}_2+\mathrm{I}_2 \rightleftharpoons 2 \mathrm{HI}$ the equilibrium concentration of $\mathrm{H}_2, \mathrm{I}_2$ and HI are 8.0, 3.0 and 28.0 mole/litre, respectively, the equilibrium constant is
(a) 28.34
(b) 32.66
(c) 34.78
(d) 38.88

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Key Concepts

Chemical Equilibrium

Chemical equilibrium is the state in a reversible reaction where the rates of the forward and reverse reactions become equal, resulting in constant concentrations of all species involved. This does not mean the reactions have stopped; rather, they occur at the same rate, maintaining a balance.

Law of Mass Action

The law of mass action provides the basis for writing the equilibrium constant expression for a chemical reaction. It states that the ratio of the products of the concentrations of the products, each raised to their stoichiometric coefficients, to the product of the concentrations of the reactants, each raised to their stoichiometric coefficients, remains constant at a given temperature.

Reaction Stoichiometry

Reaction stoichiometry is the quantitative relationship between the amounts of reactants and products in a chemical reaction as described by the balanced chemical equation. The stoichiometric coefficients not only determine the proportions in which substances react but also dictate the exponents in the equilibrium constant expression.

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