Daily Dose 006 | THERMODYNAMICS
How do you find the Absolute Pressure in a tank?
Atmospheric, Gage, Absolute…what gives when it comes to talking Pressure.
It’s not much of a problem type, typically easy money…but it trips students up for sure.
But this isn’t going to be your case, in this video, we jam on another FE Exam Practice Problem in the subject of THERMODYNAMICS, specifically revolving around the relationship of ATMOSPHERIC PRESSURE to GAGE PRESSURE.
Key Definition
What is the ATMOSPHERIC PRESSURE?
ATMOSPHERIC PRESSURE is defined as the force per unit area exerted against a surface by the weight of the air above that surface.
The STANDARD ATMOSPHERIC PRESSURE at sea level has a mean value of 101.3 pascals, which is roughly 14.7 psi.
There is a relationship between ATMOSPHERIC PRESSURE, GAGE PRESSURE and ABSOLUTE PRESSURE.
GAGE PRESSURE is the pressure relative to atmospheric pressure.
GAGE PRESSURE is positive for pressures above ATMOSPHERIC PRESSURE, and negative for pressures below it.
ABSOLUTE PRESSURE is the sum of GAGE PRESSURE and ATMOSPHERIC PRESSURE.
Check out the video and see how we can go about solving this type of problem in the most efficient manner.
As always, with Love, Prepineer
Video Review
How to find the Absolute Pressure in a tank
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