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 ΔG°rxn (kj•mol-1 ) of each reaction below using values from this table.
(1) H2 (g) + O2 (g) ⇌ H2O2 (l)
(2) H2O (l) + 1/2 O2 (g) ⇌ H2O2 (l)
Which method requires less energy under standard conditions?
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