Solve the following problem:
When an electric current is maintained in an electrolytic cell of slightly acidic water and 1mol of water is electrolyzed into hydrogen and oxygen, 2 F (faradays) of charge are transferred through a source of emf ε (IF≈ 96,500 Cjmol). The energy change of the system is +286,500 J, and 50,000 J of heat is absorbed. What is ε?
Make sure you use enough details to support your answer.