Which of the following statements concerning E° for an electron-transfer reaction is false?
A) It is measured by comparison with the partial pressure of oxygen in the bloodstream rather than 1 atmosphere pressure.
B) It is measured by comparison with a standard hydrogen electrode.
C) It is related to DG° by a well known equation.
D) It cannot be determined for electron-transfer reactions involving coenzyme Q.

Question

Quizplus · Accepted Answer

E° is not measured by comparison with the partial pressure of oxygen in the bloodstream. It is typically measured by comparison with a standard hydrogen electrode or other reference electrode. Choice B is true. E° is related to DG° by the equation: DG° = -nF E°, where n is the number of electrons transferred and F is the Faraday constant. Choice C is true. Choice D is false; E° can be determined for electron-transfer reactions involving coenzyme Q.

Which of the Following Statements Concerning E° for an Electron-Transfer