The air pressure for a tire is 109 KPa. What is this pressure in atmospheres?

Question

The air pressure for a tire is 109 KPa. What is this pressure in atmospheres?

Answer 1

The conversion factor that you need to use is

1 atm = 101.325 kPa

Using dimensional analysis, we have...

109 kPa x 1 atm/101.325 kPa = 1.075 atm = 1.08 atm (3 sig. figs.)