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cloveb cloveb
wrote...
Valued Member
Posts: 792
7 years ago
What energy change is associated with the reaction to obtain 1.00 mole of H2? The balanced equation is:
2 H2O(g) → 2 H2(g) + O2(g)
and the relevant bond energies are:
H-H : 436 kJ/mol; H-O : 467 kJ/mol;
O-O : 146 kJ/mol; O=O : 498 kJ/mol.

1. +425 kJ
2. +249 kJ
3. −425 kJ
4. +498 kJ
5. -498 kJ
6. −436 kJ
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bolbolbolbol
wrote...
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Posts: 3162
7 years ago
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This calls for a celebration Person Raising Both Hands in Celebration
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Smart ... Thanks!
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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