Physical chemistry - Electrode potential and fuel cells

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2
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What is the difference between primary and secondary cells(1)

  • Primary are non rechargeable whereas secondary are rechargeable


3
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Lead acid batteries have a finite lifespan and become less effective over time. Outline 2 difficulties in their disposal(2)

  • Lead is toxic

  • Acid used is corrosive


4
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Why is a salt bridge used(1)

  • Contains mobile ions