Chemistry · 2023
JEE Main · 25 January 2023, Shift 2 · Q53
0 L of CO_2 is produced on complete combustion of 16.8 L gaseous mixture of ethene and methane at 25°C and 1 atm. Heat evolved during the combustion…
$\displaystyle 0$ L of $\displaystyle \mathrm{CO}_2$ is produced on complete combustion of $\displaystyle 16.8$ L gaseous mixture of ethene and methane at $\displaystyle 25$°C and $\displaystyle 1$ atm. Heat evolved during the combustion process is $\displaystyle \_\_\_\_$ kJ.
Given : $\displaystyle \Delta \mathrm{H}_{\mathrm{c}}\left(\mathrm{CH}_4\right)=-900 \mathrm{~kJ} \mathrm{~mol}^{-1}$
$$\Delta \mathrm{H}_{\mathrm{c}}\left(\mathrm{C}_2 \mathrm{H}_4\right)=-1400 \mathrm{~kJ} \mathrm{~mol}^{-1}
$$
Official answer
From NTA’s final answer key for this paper.
847
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JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.