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7 September, 06:11

Batteries are made of two metals with different electron affinities. What does the phrase "electron affinity" mean and how does this affinity affect the voltage of the battery?

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  1. 7 September, 08:45
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    Electron affinity is the tendency of a metal to accept electrons. In a general battery, one terminal has a higher electron affinity than the other, which attracts more electrons towards it, as compared to the other terminal. This potential difference between terminals create the voltage of the battery.
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