Which of the following gives Standard cell potential of a cell (E^o)?(a) E^ocathode-E^oanode(b) E^oanode-E^ocathode(c) E^ocathode*E^oanode(d) E^oanode/E^ocathodeThis question was posed to me in an internship interview.This intriguing question originated from Corrosion Principles topic in chapter Corrosion Principles of Corrosion Engineering

Which of the following gives Standard cell potential of a cell (E^o)?(

1.	Which of the following gives Standard cell potential of a cell (E^o)?(a) E^ocathode-E^oanode(b) E^oanode-E^ocathode(c) E^ocathode*E^oanode(d) E^oanode/E^ocathodeThis question was posed to me in an internship interview.This intriguing question originated from Corrosion Principles topic in chapter Corrosion Principles of Corrosion Engineering
Answer» Right answer is (a) E^ocathode-E^oanode The explanation is: A ELECTROCHEMICAL CELL consist of two electrodes with a potential difference preferentially one acts as a CATHODE and other as an anode. The standard state of each specific electrode is constant and it measured against the HYDROGEN electrode at 25°C and 1 atm pressure. And standard cell potential is calculated as E^ocathode-E^oanode.

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