Solved: Photodissociation of water H2O(l) 1 hn H2(g) 1 1

Chapter 7, Problem 7.108

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Photodissociation of water H2O(l) 1 hn H2(g) 1 1 2O2(g) has been suggested as a source of hydrogen. The Hrxn for the reaction, calculated from thermochemical data, is 285.8 kJ per mole of water decomposed. Calculate the maximum wavelength (in nm) that would provide the necessary energy. In principle, is it feasible to use sunlight as a source of energy for this process?

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