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Question: Answered & Verified by Expert
In which of the following reactions, an increase in the volume of the container will favour the formation of products?
ChemistryChemical EquilibriumJEE MainJEE Main 2018 (15 Apr Shift 1 Online)
Options:
  • A
    $4 \mathrm{NH}_3(\mathrm{g})+5 \mathrm{O}_2(\mathrm{g}) \rightleftharpoons 4 \mathrm{NO}$ (g) $+6 \mathrm{H}_2 \mathrm{O}(\mathrm{l})$
  • B
    $2 \mathrm{NO}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_2$ (g)
  • C
    $3 \mathrm{O}_2 \rightleftharpoons 2 \mathrm{O}_3(\mathrm{g})$
  • D
    $\mathrm{H}_2(\mathrm{g})+\mathrm{I}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{g})$
Solution:
1383 Upvotes Verified Answer
The correct answer is:
$2 \mathrm{NO}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_2$ (g)
Volume $\uparrow P \downarrow$, reaction proceeds in which direction where the number of moles of gases increases.
$2 \mathrm{NO}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_2(\mathrm{~g})$
$\Delta \mathrm{n}_{\mathrm{g}}=(2+1)-2=1$

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