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AIPMT 2004 Physics and Chemistry Paper

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Question : 59

Total: 100

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(g)+Br2(g)→2‌HBr(g) is-

+103‌kJ
+261‌kJ
−103‌kJ
−261‌kJ

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