If the bond energies of {H}- {H}, {Br}- {Br} and {H}- {Br} are 433,192 and 364 {kJ} {mol}^{-1} respectively, the ∆ H^{\circ} for the reaction {H}_{2}+ {Br}_{2(g)} \to 2 {HBr}_{(g)} is (2004)

Class 11 NEET Chemistry Chemical Thermodynamics

Question : 63 of 96

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If the bond energies of H−H,‌‌Br−Br and H−Br are 433,192 and 364kJmol−1 respectively, the ∆H∘ for the reaction H2+Br2(g)→2HBr(g) is

(2004)

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