Typical freshly cut "green" firewood contains about 50%water by weight; for seasoned wood, the comparablefigure is about 20%. Firewood is usually sold by volume,so compare the energy available from a given volume ofgreen wood with that available from seasoned wood.Assume an energy content of 20 MJ/kg for perfectly drywood, and that 2.3 MJ/kg of energy is needed tovaporize water. Also assume that the wood hasessentially the same volume whether green or seasoned.

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Answered: Typical freshly cut "green" firewood…

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