The combustion of 100 mole of octane c8h18 yields 8 moles, Ask an Expert

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The combustion of 1.00 mole of octane, C8H18, yields 8 moles of CO₂, 9.00 moles of H₂O, and 47.0 moles of N₂. The exhaust gases at 811 K, 0.172 MPa from a spark ignition engine are to be expanded through a turbocharger used to compress the incoming air charge to the engine.

The incoming air is at 20.0°C and atmospheric pressure, and the turbocharger turbine exhausts to the atmosphere (Figure below).

Find the compressor's isentropic outlet temperature T₂ and its isentropic power input per unit mass flow rate (W_C/m)_s.

2093_Figure 4.jpg

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