Problem- hydrogen peroxide can be prepared in several ways, Ask an Expert

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Problem- Hydrogen peroxide can be prepared in several ways. One method is the reaction between hydrogen and oxygen, another method is the reaction between water and oxygen. Calculate the ?G°rxn of each reaction below using values from this table.

1.) H2(g) + O2(g) ---> H2O2(l)

Delta G rxn = ? KJ.mol-1

2.) H2O(l) +1/2O2 (g) ---> H2O2(l)

Delta G rxn = ? KJ.mol-1

3. Which method requires less energy under standard conditions?

Reaction 1 or Reaction 2

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