Enthalpy of Combustion.... | JEE Main 2022

JEE MAIN 2022

25-06-2022 S2

Question

At $25^{\circ} \mathrm{C}$ and 1 atm pressure, the enthalpy of combustion of benzene (1) and acetylene (g) are $-3268 \mathrm{~kJ} \mathrm{~mol}-1$ and -1300 kJ mol-1, respectively. The change in enthalpy for the reaction $3 \mathrm{C}_2 \mathrm{H}_2(\mathrm{~g}) \rightarrow \mathrm{C}_6 \mathrm{H}_6(\mathrm{I})$, is

Select the correct option:

$+324 \mathrm{~kJ} \mathrm{~mol}^{-1}$

$+632 \mathrm{~kJ} \mathrm{~mol}^{-1}$

$-632 \mathrm{~kJ} \mathrm{~mol}^{-1}$

$-732 \mathrm{~kJ} \mathrm{~mol}^{-1}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution