For which one of the following equation \( \Delta \mathrm{H}_{\mathrm{r}}^{\circ} \) equal to \(....

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For which one of the following equation \( \Delta \mathrm{H}_{\mathrm{r}}^{\circ} \) equal to
\( \mathrm{P} \)
\( \Delta \mathrm{H}_{\mathrm{f}}^{\circ} \) for the product?
W
(1) \( \mathrm{Xe}(\mathrm{g})+2 \mathrm{~F}_{2}(\mathrm{~g}) \longrightarrow \mathrm{XeF}_{4}(\mathrm{~g}) \)
(2) \( 2 \mathrm{CO}(\mathrm{g})+\mathrm{O}_{2}(\mathrm{~g}) \longrightarrow 2 \mathrm{CO}_{2}(\mathrm{~g}) \)
(3) \( \mathrm{N}_{2}(\mathrm{~g})+\mathrm{O}_{3}(\mathrm{~g}) \longrightarrow \mathrm{N}_{2} \mathrm{O}_{3}(\mathrm{~g}) \)
(4) \( \mathrm{CH}_{4}(\mathrm{~g})+2 \mathrm{Cl}_{2}(\mathrm{~g}) \longrightarrow \mathrm{CH}_{2} \mathrm{Cl}_{2}(l)+2 \mathrm{HCl}(\mathrm{g}) \)


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