COMEDK · Chemistry · 7. Chemical Equilibrium
\(56 \mathrm{~g}\) of nitrogen and \(8 \mathrm{~g}\) of hydrogen gas are heated in a closed vessel. At equilibrium \(34 \mathrm{~g}\) of ammonia are present. The equilibrium number of moles of nitrogen, hydrogen and ammonia are respectively
- A \(1,1,2\)
- B \(2,1,2\)
- C \(1,2,2\)
- D \(2,2,1\)
Answer & Solution
Correct Answer
(A) \(1,1,2\)
Step-by-step Solution
Detailed explanation
\(\therefore\) Mass of \(N_{2}\) left \(=56-28=28\) g \(\therefore\) Moles of \(\mathrm{N}_{2}\) left \(=\frac{28}{28}=1\) mole Mass of \(\mathrm{H}_{2}\) left \(=8-6=2 \mathrm{~g}\) \(\therefore\) Moles of \(\mathrm{H}_{2}\) left \(=\frac{2}{2}=1\) mole Moles of ammonia…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- A gaseous carbon compound is soluble in dilute \(\mathrm{HCl}\). The solution on treating with \(\mathrm{NaNO}_{2}\) gives off nitrogen leaving behind a solution, which smells of wood spirit. The carbon compound isCOMEDK 2013 Hard
- Presence of peroxides in old stocks of ethers can be tested by first treating them with \(\mathrm{Fe}^{2+}\) ions and then adding an aqueous solution ofCOMEDK 2024 Easy
- In the following, the element with the highest ionisation energy isCOMEDK 2018 Easy
- Consider the following equilibrium,
\(\begin{aligned}
& 2 \mathrm{No}(g) \rightleftharpoons \mathrm{N}_2+\mathrm{O}_2 ; \mathrm{K}_{\mathrm{G}}=2.4 \times 10^{20} \\
& \mathrm{No}(\mathrm{g})+\frac{1}{2} \mathrm{Br}_2(\mathrm{~g}) \rightleftharpoons \mathrm{NoBr}(\mathrm{g}) ; \mathrm{K}_{\mathrm{C}_2}=1.4
\end{aligned}\)
Calculate \(K_C\) for the reaction,
\(\frac{1}{2} \mathrm{~N}_2(g)+\frac{1}{2} \mathrm{O}_2(g)+\frac{1}{2} \mathrm{Br}_2(g) \rightleftharpoons \mathrm{NOBr}(g)\)COMEDK 2023 Medium - When a mixture of methane and oxygen is passed through heated molybdenum oxide, the main product formed isCOMEDK 2016 Medium
- When 0.1 mole of \(\mathrm{MnO}_4{ }^{2-}\) is oxidised, the quantity of electricity required to completely oxidise \(\mathrm{MnO}_4{ }^{2-}\) to \(\mathrm{MnO}_4^{-}\) isCOMEDK 2024 Easy
More PYQs from COMEDK
- \(\int \frac{x^{2}+1}{x^{4}+1} d x\)COMEDK 2018 Easy
- The derivative of \(y = \sin^2\left[\cot^{-1}\left(\sqrt{\dfrac{1-x}{1+x}}\right)\right]\) isCOMEDK 2026 Medium
- A car is moving with a speed of \(54\text{ km/h}\). If the driver applies brakes and it stops after \(3\text{ s}\), then how much distance is covered by the car before coming to rest?COMEDK 2022 Easy
- \(R\) is a relation on \(N\) given by \(R=\{(x, y) \mid 4 x+3 i j=20\}\). Which of the following belongs of \(R\) ?COMEDK 2019 Easy
- The point on the line \(x+y=4\) that lie at a unit distance from the line \(4 x+3 y=10\) isCOMEDK 2025 Medium
- Which one of the following is the product \((Z)\) formed at the end of the given reaction:
\(\begin{aligned}
& \text { Propan-1-ol }+\mathrm{SOCl}_2 \rightarrow[\mathrm{X}] \\
& {[\mathrm{X}]+\mathrm{HC} \equiv \mathrm{C}-\mathrm{Na} \rightarrow[\mathrm{Y}]} \\
& {[\mathrm{Y}]+\mathrm{H}_2 \mathrm{SO}_4 / \mathrm{HgSO}_4, 330 \mathrm{~K} \rightarrow[\mathrm{Z}]}
\end{aligned}\)COMEDK 2025 Medium