How long would it take (in seconds) to replace all of the hydrogen gas in a fuel cell that can accommodate 4.8 kg of hydrogen (H2). If the current supplied to the cell is 10,000 A? ½ O2 + 2H+ + 2e- → H2O E0 = +1.23 V 2 H+ + 2 e- → H2 E0 = 0.00 V F = 96,500 C/mol

Physical Chemistry | Homework answer #220108

Question #220108

How long would it take (in seconds) to replace all of the hydrogen gas in a fuel cell that can accommodate 4.8 kg of hydrogen (H₂). If the current supplied to the cell is 10,000 A?

½ O₂ + 2H⁺ + 2e- → H₂O E⁰ = +1.23 V

2 H⁺ + 2 e- → H₂ E⁰ = 0.00 V

F = 96,500 C/mol

Expert's answer

Time =654 seconds