Question

Atmospheric pressure is 101 kPa. Pressure inside a tire is measured using a typical tire pressure gage to be 900 kPa. Find gage pressure and absolute pressure in the tire. ___________________________________________________________________

Answer 1

The gage and absolute pressures are 900 and 1001 kilopascals, respectively.

Step-by-step explanation:

The gage pressure (
`P_(g)`), in kilopascals, is the difference between absolute (
`P_(abs)`) and atmospheric pressures (
`P_(atm)`), measured in kilopascals. If we know that
`P_(g) = 900\,kPa` and
`P_(atm) = 101\,kPa`, then the gage and absolute pressures are, respectively:

`P_(g) = 900\,kPa`

`P_(abs) = P_(atm) + P_(g)`

`P_(abs) = 101\,kPa + 900\,kPa`

`P_(abs) = 1001\,kPa`

The gage and absolute pressures are 900 and 1001 kilopascals, respectively.