Chemistry, 28.02.2021 19:50 brittanyfox411

Coal has about 30E6 J of energy per kg, but a power plant can only use 30% of this energy to make electricity (i. e., it is 30% efficient). How many kilograms of coal have to be burned to light a 100 W light bulb for one day?

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Coal has about 30E6 J of energy per kg, but a power plant can only use 30% of this energy to make el...

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