Chemistry · 2025
JEE Main · 23 January 2025, Shift 1 · Q71
The standard enthalpy and standard entropy of decomposition of N_2 O_4 to NO_2 are 55.0 kJ mol^-1 and 175.0 J / K / mol respectively. The standard…
The standard enthalpy and standard entropy of decomposition of $\displaystyle \mathrm{N}_2 \mathrm{O}_4$ to $\displaystyle \mathrm{NO}_2$ are $\displaystyle 55.0 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and $\displaystyle 175.0 \mathrm{~J} / \mathrm{K} / \mathrm{mol}$ respectively. The standard free energy change for this reaction at $\displaystyle 25^{\circ} \mathrm{C}$ in J $\displaystyle \mathrm{mol}^{-1}$ is $\displaystyle \_\_\_\_$ (Nearest integer)
Official answer
From NTA’s final answer key for this paper.
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JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.