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Question: Answered & Verified by Expert
Observe the following equilibrium at $\mathrm{T}(\mathrm{K})$
$\mathrm{H}_2(\mathrm{~g})+\mathrm{I}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{g})$
Which one of the following does not disturb the above equilibrium?
ChemistryChemical EquilibriumAP EAMCETAP EAMCET 2023 (16 May Shift 2)
Options:
  • A Addition of $\mathrm{H}_2$ (g)
  • B Removal of $\mathrm{HI}(\mathrm{g})$
  • C Addition of $\mathrm{I}_2(\mathrm{~g})$
  • D Addition of $\mathrm{He}(\mathrm{g})$
Solution:
2932 Upvotes Verified Answer
The correct answer is: Addition of $\mathrm{He}(\mathrm{g})$
Addition of $\mathrm{He}$ gas (inert gas) at constant pressure or volume will not have any effect on the equilibrium of the given reaction as a change of pressure will not affect the number of gaseous moles that are equal on reactant and product side.

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