A single half cell potential cannot be measured alone. It is always me…

Question

A single half cell potential cannot be measured alone. It is always measured:

Accepted Answer

C. Relative to another

1. A voltmeter needs two terminals.
2. One half cell is compared with a reference half cell.
3. So it is measured relative to another.
_Source: OpenStax Chemistry 2e, Chapter 17, Electrochemistry._

Answer

Relative to the air

Answer

Relative to the wire

Answer

Relative to nothing

A single half cell potential cannot be measured alone. It is always measured:

Keep practising Electrochemistry