(Answered) The amount of energy released by burning a fuel source

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the amount of energy released by burning a fuel source, measured in energy per mass, is called the fuel value. if all the energy obtained from burning 1.28 pounds of butane(fuel value is 10.85Kcal/g) is used to heat 123.0kg of water at an initial temperature of 18.7 C, what is the final temperature?

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