It's cold--check your tires.
When it gets cold, you have to add more air to car tires. If a1.90×10−2 m3m3  car tire at 299KK  has an *absolute* pressure of only 213 kPa
How many moles of air do you have to add to increase its*absolute* pressure to 271 kPa? The temperature and volume of thetire remain constant.
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