Question

A vacuum gauge connected to a tank reads 30.0 kPa. If the local atmospheric pressure is 13.5 psi, what is the absolute pressure in units of psi, with 3 sig figs

Answer 1

`P_a=17.85psi`

Step-by-step explanation:

From the question we are told that:

Tank Pressure
`P_t=30.0kpa`

Atmospheric Pressure
`P_a=13.5 psi`

Where

`1kpa=0.148psi`

Therefore

`30kpa=4.35psi`

Generally the equation for Absolute pressure
`P_a` is mathematically given by

`P_a=13.5+4.35`

`P_a=17.85psi`