Two reactions are given below: 2 Fe (s) +3/2 O 2(~g) → Fe₂ O 3(~s), Δ H^(°)=-822 ~kJ / mol C (s) +1/2 O 2(~g) → CO (g), Δ H^(°)=-110 ~kJ / mol Then enthalpy change for following reaction 3 C (s) +Fe₂ O 3(~s) → 2 Fe (s) +3 CO (g) is _ _ _ k J / mol.

Chemical Thermodynamics: JEE Main 2024 Chemistry question

JEE Main 2024 · 30 Jan, Evening shift · Q23

JEE Main 202430 Jan, Evening shiftChemistryHardChemical Thermodynamics84× since 2002

Two reactions are given below:

\begin{aligned} & 2 \mathrm{Fe}_{(\mathrm{s})}+\frac{3}{2} \mathrm{O}_{2(\mathrm{~g})} \rightarrow \mathrm{Fe}_2 \mathrm{O}_{3(\mathrm{~s})}, \Delta \mathrm{H}^{\circ}=-822 \mathrm{~kJ} / \mathrm{mol} \\ & \mathrm{C}_{(\mathrm{s})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})} \rightarrow \mathrm{CO}_{(\mathrm{g})}, \Delta \mathrm{H}^{\circ}=-110 \mathrm{~kJ} / \mathrm{mol} \end{aligned}

Then enthalpy change for following reaction

3 \mathrm{C}_{(\mathrm{s})}+\mathrm{Fe}_2 \mathrm{O}_{3(\mathrm{~s})} \rightarrow 2 \mathrm{Fe}_{(\mathrm{s})}+3 \mathrm{CO}_{(\mathrm{g})}

is _______

\mathrm{kJ} / \mathrm{mol}

Your answerType your answer. Integers and decimals are accepted.

JEE Main 2024 Chemical Thermodynamics Question with Answer (30 Jan Evening shift, Q23) | JEE Arc