🧪ap chemistry review

E°red

Written by the Fiveable Content Team • Last updated August 2025
Verified for the 2027 exam
Verified for the 2027 examWritten by the Fiveable Content Team • Last updated August 2025

Definition

The standard reduction potential for a half-reaction, measured in volts, used to determine the spontaneity and cell potential of electrochemical reactions.

AP course connection

Topic 9.9: 9.9 Cell Potential and Free Energy

Unit 9

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