In a reaction, 1.00 mole of H2 is produced at a constant pressure of 1.00 atm and at 298 K (1 L atm = 101.3 J): 2 H2O(g) → 2 H2(g) + O2(g)     ΔH° = +483.6 kJ mol–1 What is ΔE in this reaction?   +243.0 kJ   +240.6 kJ   +239.3 kJ

Chemistry: The Molecular Science
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Chapter4: Energy And Chemical Reactions
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In a reaction, 1.00 mole of H2 is produced at a constant pressure of 1.00 atm and at 298 K (1 L atm = 101.3 J):

2 H2O(g) → 2 H2(g) + O2(g)     ΔH° = +483.6 kJ mol–1

What is ΔE in this reaction?

 

+243.0 kJ

 

+240.6 kJ

 

+239.3 kJ

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