For the reaction 2 H_(2) + O_(2) rarr 2H_(2)O, DeltaH= - 571 . Bond energy of H-H =435 and O=O=498 . Then the average bond energy of O-H bond will be

For the reaction 2 H_(2) + O_(2) rarr 2H_(2)O, DeltaH= - 571 . Bond en

1.	For the reaction 2 H_(2) + O_(2) rarr 2H_(2)O, DeltaH= - 571 . Bond energy of H-H =435 and O=O=498 . Then the average bond energy of O-H bond will be
Answer» 484 `-484` 271 `-271` Solution :For the reaction `2H_(2)+O_(2)RARR 2H_(2)O(2H_(2)O(2H-O-H)` `Delta_(r)H= 2xx BE(H_(2)) +BE(O_(2)) - 4 xx BE(O-H)-571= 2 xx 435 +498 -4 xxBE (O-H) ` or `BE(O-H) =484`