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An automobile tire has a volume of 0.0150 m3 on a cold day when the temperature of the air in the tire is 5.0°C and atmospheric pressure is 1.02 atm. Under these conditions, the gauge pressure is measured to be 1.70 atm (about 25 lb/in.2). After the car is driven on the highway for 30 min. the temperature of the air in the tires has risen to 45.0°C and the volume to 0.0159 m3. What is the gauge pressure at that time?
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