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0 votes
1 answer
126 views

How does cell potential change with temperature for positive enthalpy and negative entropy?

A recent United States National Chemistry Olympiad question asked: A certain voltaic cell has a standard cell potential that increases with increasing temperature. Which best explains this ...
unstable's user avatar
  • 206
-2 votes
1 answer
124 views

Inconsistency in between Nernst Equation and Gibbs Free Energy Equation [closed]

Part 1 - Derivation of the Gibbs Free Energy Equation: [copied from this] Using the fundamental equations for the state function (and its natural variables): \begin{align} \mathrm{d}G &= -S\...
Asmit Karmakar's user avatar
4 votes
2 answers
458 views

How come ∆G ≤ 0 is used for spontaneity in electrochemistry, not ∆G ≤ W(other)?

The spontaneity condition for a system at constant temperature and pressure in which the only type of work accomplished is of the $pV$ type can be expressed as: $$\Delta G\le0\tag1$$ In case of ...
Mark Diejs's user avatar