Enthalpies of formation of elementary substances Xe and F2 are taken as zero. For (c) ΔHreaction ∘ =ΔHf∘(XeF4)−[ΔHf∘(Xe)+2ΔHf∘(F2)] Thus, ΔH∘ reaction =ΔH∘f(XeF4)
NEET UG 2003 — Chemistry Physical Chemistry
For which one of the following equations is ΔHreact ∘ equal to ΔHf∘ for the product?
Held on 30 Apr 2003 · Verified 9 Jul 2026.
N2(g)+O3(g)→N2O3(g)
CH4(g)+2Cl2( g)→CH2Cl2(l)+ 2HCl(g)
Xe(g)+2 F2(g)→XeF4(g)
2CO(g)+O2(g)→2CO2(g)
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