Why is #Delta G# negative for electrolysis reactions?
1 Answer
Explanation:
Let us discuss the example of electrolysis of water.
In electrolysis of water, hydrogen and oxygen gases are produced.
The anode and the cathode half-reactions are the following:
Anode:
Cathode:
Net reaction:
A negative cell potential implies non spontaneous process and therefore,
Note that the relationship between
where,
and
Therefore, since
Because
Note that,
Electrochemistry | Electrolysis, Electrolytic Cell & Electroplating.