Answer: The absolute pressure is 584 kpa.
Explanation: Generally, pressure is the force exerted by an object per unit area. Based on the general definition of pressure, atmospheric pressure is the force exerted by an atmospheric column of a certain height per unit area. The Gauge pressure of a system is measured relative to the atmospheric pressure. This means that the gauge pressure is the pressure inside a system (for example, pressure exerted by compressed air in a closed system) relative to the atmospheric pressure measured locally.
The gauge pressure could take positive values if it is greater than the atmospheric pressure, and vice versa.
The absolute pressure is the sum of the gauge and atmospheric pressure.
Therefore in this case:
P(abs) = P(atm) + P(gage)
= 94 + 490
= 584 kpa.
Where:
P(abs) is the absolute pressure.
P(atm) is the atmospheric pressure.
P(gage) is the gauge pressure.
To learn more about the types of pressure and how it is calculated:
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