12. A 1.8-liter, 6-cylinder engine behaves as a polytropic air system with n=1.2. At the beginning the volume of air inside the cylinder is Vo=1/8 Vcylinder, the temperature and pressure are 25 °C and 77 KPa. At the end of the expansion, the temperature is 350°C and the volume is that of the cylinder. A. What is the pressure at the end of the cycle? B. If 40% of the boundary work is used to accelerate a 400 kg car. How long does it take for the car to go from 0 to 100 at 2000 RPM?

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
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12. A 1.8-liter, 6-cylinder engine behaves as a polytropic air system with n=1.2. At the beginning the volume of air inside the cylinder is Vo=1/8 Vcylinder, the temperature and pressure are 25 °C and 77 KPa. At the end of the expansion, the temperature is 350°C and the volume is that of the cylinder. A. What is the pressure at the end of the cycle? B. If 40% of the boundary work is used to accelerate a 400 kg car. How long does it take for the car to go from 0 to 100 at 2000 RPM?

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