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Fоr the fоllоwing numericаl problem, show аll your work on scrаtch paper. Enter the final answers to parts A, B, C and D in the textbox. Please ensure that answers entered in the text box matches with answers calculated on scratch paper. Butanol (C4H10O) is an alcohol that can readily replace gasoline as a fuel. Its density is 810 kg/m3. Write a balanced stoichiometry for complete combustion of butanol with oxygen (O2). The products of combustion are carbon dioxide (CO2) and water (H2O). Estimate the HHV of butanol in units of GJ/m3 using the stoichiometric oxygen consumption method. What is the HHV in units of Btu/gallon? What is the GGE of butanol? Now consider the combustion of butanol in dry air (79% by volume N2 and 21% by volume O2). Air is provided such that a stoichiometric ratio of O2 enters the combustion chamber. The combustion gases leave the combustion chamber at 300 oC. What is the NHV in units of GJ/m3 for combustion of butanol under these conditions?