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Change is associated with the reaction to obtain

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1. What energy change is associated with the reaction to obtain one mole of H2 from one mole of water vapor? The balanced equation is 2 H2O(g) g 2H2(g) + O2(g) and the relevant bondenergies are: H-H = 436 kJ/mol; H-O = 467 kJ/mol; O-O = 146 kJ/mol O=O = 498 kJ/mol

A. -425 kJ

B. +425 kJ

C. -436 kJ

D. +249 kJ

Reference no: EM131344002

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