[問題] 跪求解答
(一) When hydrogen is oxidized completely to water at 25oC, how much
electrical energy can be produced using a fuel cell? Assume that there are no
electrical losses. What is the electromotive force of the fuel cell ? (5分)
(二) When one mole of hydrogen is oxidized completely in a Carnot engine that
operates between 500 K and 300 K, how much electrical energy can be produced? Assume that the mechanical energy can be converted completely into electrical energy. (5分)
Given: For water at 25 oC, the enthalpy of formation (岛fHo) and the Gibbs
energy of formation(岛fGo) are -285.83 kJ mol-1 and -237.13 kJ mol-1,
respectively. The Faraday constant is
96,485 Coulomb/mole.
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 36.236.116.73
→
06/16 12:41, , 1F
06/16 12:41, 1F
→
06/16 12:42, , 2F
06/16 12:42, 2F
→
06/16 20:27, , 3F
06/16 20:27, 3F
→
06/16 20:28, , 4F
06/16 20:28, 4F
推
06/16 20:52, , 5F
06/16 20:52, 5F
推
07/03 12:09, , 6F
07/03 12:09, 6F