Question

The air in the inner tube of the tire of a racing bike has a pressure of 115 psi. How do you convert this pressure to atm?

Answer 1

`7.82 atm`

Explanation:

Use the relationships between `ps i` and `atm`:

`1 atm = 14.7 p si`

So, using dimensional analysis,

`115 p si((1atm)/(14.7p si)) = 7.82 atm`