By definition we have to:
\(Pabs = Patm + Pg
\)
Where,
Pabs: absolute pressure
Patm: atmospheric pressure
Pg: gage pressure
The atmospheric pressure is constant and its value is:
\(Patm = 101.325 kPa
\)
Then, by clearing gage pressure we have:
\(Pg = Pabs - Patm
\)
Substituting values we have:
\(Pg = 550.280 - 101.325
Pg = 448.955 KPa
\)
Answer:
If the absolute pressure of a gas is 550.280 kPa, its gage pressure is:
D. 448.955 kPa
