What is a reduction potential (E), and how is it related to ?G?
What will be an ideal response?
Reduction potential (E) is the tendency of a molecule to accept electrons, measured in volts (V) or millivolts (mV). A reduction potential exists between the oxidized form of a molecule (electron acceptor) and its reduced form (electron donor). The better the molecule is at accepting electrons (rather than donating), the higher its reduction potential, relative to it's reduced form.
A positive value of E has a negative ?G, as described by this equation:
?G°? = ?nFE°?
This means that for molecules that are good electron acceptors (i.e. have high reduction potential), when they accept electrons, it is a highly favored reaction (i.e. has a large negative delta ?G).
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