The actual decomposition voltage is less than the reversible decomposition voltage, which violates the second law of thermodynamics.
1)Experiments show that there exists an actual decomposition voltage which is less than the reversible decomposition voltage. ==》
2)The change of Gibbs free energy is related to the path.==》
3)The cyclic integral of entropy is not zero.==》
4)The second law of thermodynamics becomes invalid.
5) Scientists can only pretend to be deaf and dumb to such a fact.
Please see the picture for details.