What will be the gauge pressure and the absolute pressure of water at depth 12m below the surface?

1 Answer
Michael
Aug 9, 2015

(a). 117"kPa"

(b). 217"kPa"

Explanation:

Absolute pressure = gauge pressure + atmospheric pressure.

"Gauge Pressure" is the pressure due the liquid alone. This is given by:

"GP"=rhogh

= 10^(3)xx9.8xx12=1.17xx10^(5)N.m^(-2)

=117"kPa"

To get the absolute pressure we need to add on the pressure due to the weight of the air above it. We add on the atmospheric pressure which I will assume to be 100"kPa"

Absolute pressure = 117 + 100=217"kPa"

Related questions
See all questions in Pressure
Impact of this question
49082 views around the world
You can reuse this answer
Creative Commons License