2 H(g) + O2(g) 2 HO(1) In a hydrogen-oxygen fuel cell, energy is produced by...
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2 H₂(g) + O2(g) →→ 2 H₂O(1) In a hydrogen-oxygen fuel cell, energy is produced by the overall reaction represented above. (a) When the fuel cell operates at 25°C and 1.00 atm for 78.0 minutes, 0.0746 mol of O2(g) is consumed. Calculate the volume of H₂(g) consumed during the same time period. Express your answer in liters measured at 25°C and 1.00 atm. (b) Given that the fuel cell reaction takes place in an acidic medium, (i) write the two half reactions that occur as the cell operates, (ii) identify the half reaction that takes place at the cathode, and (iii) determine the value of the standard potential, E, of the cell. (c) Calculate the charge, in coulombs, that passes through the cell during the 78.0 minutes of operation as described in part (a). 2 H₂(g) + O2(g) →→ 2 H₂O(1) In a hydrogen-oxygen fuel cell, energy is produced by the overall reaction represented above. (a) When the fuel cell operates at 25°C and 1.00 atm for 78.0 minutes, 0.0746 mol of O2(g) is consumed. Calculate the volume of H₂(g) consumed during the same time period. Express your answer in liters measured at 25°C and 1.00 atm. (b) Given that the fuel cell reaction takes place in an acidic medium, (i) write the two half reactions that occur as the cell operates, (ii) identify the half reaction that takes place at the cathode, and (iii) determine the value of the standard potential, E, of the cell. (c) Calculate the charge, in coulombs, that passes through the cell during the 78.0 minutes of operation as described in part (a).
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Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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