The standard cell potential for the reaction 2H2(g) + O2(g) → 2H2O(g) is -1.48V.
The standard cell potential, also known as the electromotive force (emf), is a measure of the potential difference between two half-cells of an electrochemical cell when all reactants and products are present at the standard state. It is typically measured in volts (V).
For the reduction of H2(g) to H2O(g), the reduction potential is -0.824 V.
For the oxidation of O2(g) to H2O(g), the reduction potential is +0.656 V.
The standard cell potential is then calculated using the equation Ecell = E reduction - E oxidation.
Therefore, the standard cell potential for the reaction 2H2(g) + O2(g) → 2H2O(g) is -1.48V.
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