One lbmol of pentane gas (C5H₁2) reacts with the theoretical amount of air in a closed, rigid tank. Initially, the reactants are at 77°F, 1 atm. After complete combustion, the temperature in the tank is 3100°R. Assume air has a molar analysis of 21% O₂ and 79% N₂. Determine the heat transfer, in Btu.

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One lbmol of pentane gas (C5H₁2) reacts with the theoretical amount of air in a closed, rigid tank. Initially, the reactants are
at 77°F, 1 atm. After complete combustion, the temperature in the tank is 3100°R. Assume air has a molar analysis of 21%
O₂ and 79% N2.
Determine the heat transfer, in Btu.
Transcribed Image Text:One lbmol of pentane gas (C5H₁2) reacts with the theoretical amount of air in a closed, rigid tank. Initially, the reactants are at 77°F, 1 atm. After complete combustion, the temperature in the tank is 3100°R. Assume air has a molar analysis of 21% O₂ and 79% N2. Determine the heat transfer, in Btu.
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