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fraggedmemory

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An internal combustion engine runs on octane, the enthalpy of combustion is -5512 kJ/mol. The mass of 1 gallon of fuel is 3 kg.

The engine temperature is 2000 degrees C and the exit temperature is 800 degrees C. What is the work done?

The total enthalpy is -145053 kJ. The total number of moles of octane is 26.3. The molar mass of octane is .1142 kg/mol

I spent a good deal of time on this, and I am not sure how to conceptualize this problem.

*I edited the problem so you don't have to read the poorly written original problem. *

The engine temperature is 2000 degrees C and the exit temperature is 800 degrees C. What is the work done?

The total enthalpy is -145053 kJ. The total number of moles of octane is 26.3. The molar mass of octane is .1142 kg/mol

I spent a good deal of time on this, and I am not sure how to conceptualize this problem.

*I edited the problem so you don't have to read the poorly written original problem. *

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