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Rationalised 2023-24
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Electrochemistry
As the electrons enter at one end and go out through the other end,
the composition of the metallic conductor remains unchanged The
mechanism of conductance through semiconductors is more complex We already know that even very pure water has small amounts of
hydrogen and hydroxyl ions (~10–7M) which lend it very low conductivity
(3 5 × 10–5 S m–1)