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A piston of radius r = 0.05 m has a stroke within a cylinder of S = 0.2 m. At the bottom of the stoke the cylinder fills with air at T1 = 22.4 C and a pressure of P1 = 100 kPa. At the top of the stroke the air has a temperature of T2 = 110 C and a pressure of P2 = 10P1. What expression can be used for the compression ratio of the piston, V1/V2? What is the ratio? What would be the length of the cylinder in m?

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