direction of redox

[Angelina Tran 2F]

how can you predict the spontaneous direction of a redox reaction using standard reduction potentials?

[Ryan Thompson 2J]

You can predict the spontaneous direction of a reaction given the reduction potentials by if it is positive. A positive cell potential indicates spontaneity in the reaction.

[Mariyam Oladele 1E]

If the standard potential of the cell is greater than zero than the cell reaction that corresponds to that value is spontaneous. The textbook also noted that it's important to pay attention to the notation because this is only applicable when the reactants and products are in their standard values. Under different conditions the reaction may be spontaneous in the reverse direction.

[106062642]

By comparing the reduction potentials of the half-reactions and determining the direction in which the stronger oxidizing agent interacts with the stronger reducing agent, you can use standard reduction potentials to predict the spontaneity of a redox reaction.

[305920501]

My understanding is that a positive standard Ecell means that the reaction is spontaneous because K>1 and products are dominant at equilibrium. If standard Ecell is negative, then the reverse reaction is spontaneous because K<1 and the reactants are dominant at equilibrium.