Tire pressure is an important parameter for an automobile’s safety, tire lifetime, and fuel consumption. Assume the filled gas in a car tire behaves like an ideal gas.

What parameters affect the tire pressure according to the ideal gas law?
A car tire is inflated with air (78 % N2, 21 % O2 and 1 % other gases) at a pressure of 35.00 PSI (2.38 atm) and 30 °C. Using the ideal gas law, write a simplified formula and calculate the tire pressure at –10 °C. Assume a constant tire volume at different temperatures.
Assume that the tire is inflated with humid air (77 % N2, 20 % O2, 2 % H2O and 1 % other gases) at a pressure of 35.00 PSI (2.38 atm) and a temperature of 30.0 °C. How many grams of water will be condensed inside the tire if the temperature drops from 30 °C to −10 °C?
Assume 100 % water vapour condensation at –10 °C and a tire volume of 1.64x10-2 m3 in your calculations.