In: Physics
Hey there!
The American Petroleum Institute gravity, (API gravity), measures the heaviness of the liquid that we consider compared to water: if the value of API gravity is greater than 10, it is lighter and the liquid floats on water; if less than 10, it is heavier and sinks below.
The API can be given with the formula
where SG is the specific Gravity
Here we have the API = 65 , hence
The Specific Gravity (SG) is the ration between the density of the liquid to the density of water.
Hence
The PRESSURE AT A PARTICULAR HEIGHT CAN BE GIVEN WITH THE FORMULA
P = DENSITY OF THE LIQUID * HEIGHT
P = 43.52 lb / ft3 x 27 ft.
Hence P = 1175.04 lb / ft2 is the pressure 27 ft. deep.
Cheers :)