Question

in redox reaction standard emf of the cell is positive this means that​

Answer 1

In situations where an electrochemical series is not sufficient to absolutely determine the direction of a redox reaction, the standard electrode potential, Eo, can be used. A negative value of cell potential indicates a reducing environment, while a positive value indicates an oxidizing environment.

Answer 2

Answer:

By convention, when a cell is written in shorthand notation, its emf is given a positive value if the cell reaction is spontaneous. That is, if the electrode on the left forces electrons into the external circuit and the electrode on the right withdraws them, then the dial on the voltmeter gives the cell emf.

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