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The Combustion of Pure Hydrogen by the Reaction 2H2+O22H2O2 \mathrm { H } _ { 2 } + \mathrm { O } _ { 2 } \rightarrow 2 \mathrm { H } _ { 2 } \mathrm { O }

question 13

Essay

The combustion of pure hydrogen by the reaction 2H2+O22H2O2 \mathrm { H } _ { 2 } + \mathrm { O } _ { 2 } \rightarrow 2 \mathrm { H } _ { 2 } \mathrm { O } produces 142MJ142 \mathrm { MJ } per kg of hydrogen. Compare the energy per kg of octane and the total energy from the individual combustion of its carbon and hydrogen atoms.


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