What is gauge pressure and absolute pressure?
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Gauge pressure: The amount by which the pressure measured in a fluid exceeds that of the atmosphere.
Absolute pressure: absolute is zero - referenced against a perfect vacuum , so it is equal to gauge pressure plus atmospheris pressure.
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Absolute pressure: absolute is zero - referenced against a perfect vacuum , so it is equal to gauge pressure plus atmospheris pressure.
I hope this answer is right
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Answer:
Absolute pressure :
Absolute pressure is a pressure that is relative to the zero pressure in the empty, air-free space of the universe. This reference pressure is the ideal or absolute vacuum. It is denoted with the subscript “abs”: Pabs.
Gauge pressure :
The gauge pressure is defined as the difference between an absolute pressure (Pabs) and the prevailing atmospheric pressure (Pamb). It is denoted with the subscript “e”: Pe and is calculated as follows: Pe = Pabs – Pamb.
Explanation:
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