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Energy liberated by burning of coal.

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Coal is combusted in a steam boiler. The specific coal contains 25 MJ/kg

If the boiler is 90% efficient, how much coal must be burned per hour to produce a stream thermal gain of 665 MJ/s.

Roughly how much CO2 will be produced by this boiler?

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The solution contains the calculations for the production of energy by coal. Efficiency of the boiler is given and how much coal needed to provide steam energy is calculated.

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