A motorist equips his automobile tires with a relief-type valve so that the pressure inside the tire never will exceed 35 psig. He starts a trip with a pressure of 29 psig and temperature of 73oF in the tires. During the long drive, the temperature of the air in the tires reaches 180oF. Each tire contains 0.25 kg of air. Determine (a) the mass of air escaping each tire, (b) the pressure of the tire when the temperature returns to 73oF.

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