Cell potential under nonstandard

Cell potentials under nonstandard-state conditions can be calculated using the Nernst equation,... 

Calculating Cell Potentials under Nonstandard Conditions Using the Nernst Equation. 

So far, we ve considered cells with all components in their standard states. But most cells don t start at those conditions, and even if they did, the concentrations change after a few moments of operation. Moreover, in all practical voltaic cells, such as batteries, reactant concentrations are far from standard-state values. Clearly, we must be able to determine Ecc h the cell potential under nonstandard conditions. 

Knowledge Required (1) Use of the Nemst Equation to calculate cell potential under nonstandard conditions. 

We calculate cell potentials under nonstandard conditions by using standard cell potentials and the Nernst equation. 

SECTION 20.6 Cell Potentials Under Nonstandard Conditions... 

CELL POTENTIALS UNDER NONSTANDARD CONDITIONS (SECTION 20.6) The emf of a redox reaction varies with temperature and with the concentrations of reactants and products. The Nernst equation... 

One thought you may have about corrosion is that we cannot expect standard conditions in real world applications. What must we do to account for the differences that arise when standard conditions are not present This is a very important question with clear ties to thermodynamics. The equation that describes cell potentials under nonstandard conditions is called the Nemst equation ... 

To determine E, the cell potential under nonstandard conditions, we ll derive an expression for the relation between and concentration based on the relation between AG and concentration. Recall from Chapter 20 (Equation 20.13) that... 

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