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ENERGETICS (Fuel cells (Hydrogen fuel cells will continue to provide…
ENERGETICS
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Cells and batteries
If we take 2 different metals and place them in an electrolyte, we produce electricity
Cell - can produce electricity for a certain amount of time as the chemicals eventually run out and the reaction stops
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The greater the difference between the reactivity of the metals, the greater potential difference produced by the cell
Bond energy calculations
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Breaking bonds (endothermic) , making bonds (exothermic)
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In alkaline batteries, the reactants will run out so no more electricity produced. Rechargeable cells and batteries can be recharged
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