magine a car tire that contains 5.1 moles of air when at a gauge pressure of 2.1105N/m2 (the pressure above atmospheric pressure) and a temperature...

magine a car tire that contains 5.1 moles of air when at a gauge pressure of 2.1×105N/m2 (the pressure above atmospheric pressure) and a temperature of 27 ∘C. The temperature increases to 37 ∘C, the volume decreases to 0.8 times the original volume, and the gauge pressure decreases to 1.6×105N/m2.How many moles of air are left in the tire?