Search any question & find its solution
Question:
Answered & Verified by Expert
In a $1 \mathrm{~L}$ vessel, 10 moles of methane and 50 moles of $\mathrm{O}_2$ are present. The number of moles of $\mathrm{O}_2$, water and $\mathrm{CO}_2$ present in the vessel are respectively after the vessel was heated to burn methane completely.
Options:
Solution:
1299 Upvotes
Verified Answer
The correct answer is:
30, 20, 10
The combustion reaction for methane is as follows :
Initial moles Final moles
$[\because$ According to balance equation, ratio of moles of $\mathrm{O}_2, \mathrm{H}_2 \mathrm{O}$ and $\mathrm{CO}_2$ are $2: 2: 1$ respectively]
Hence, final moles of $\mathrm{O}_2=30$ moles
$$
\begin{aligned}
& \mathrm{H}_2 \mathrm{O}=20 \text { moles } \\
& \mathrm{CO}_2=10 \text { moles and }
\end{aligned}
$$
option (2) is the correct answer.
Initial moles Final moles
$[\because$ According to balance equation, ratio of moles of $\mathrm{O}_2, \mathrm{H}_2 \mathrm{O}$ and $\mathrm{CO}_2$ are $2: 2: 1$ respectively]
Hence, final moles of $\mathrm{O}_2=30$ moles
$$
\begin{aligned}
& \mathrm{H}_2 \mathrm{O}=20 \text { moles } \\
& \mathrm{CO}_2=10 \text { moles and }
\end{aligned}
$$
option (2) is the correct answer.
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.