Question

What is the level of the water in an open vessel if the hydrostatic pressure of the water os 100kPa gauge (14.5 psig) at 15.5°C (60°F)?

Answer 1

From data book, density of water at 60^oF is approx 0.999 g/cm³ i.e 1 g/cm³=1000 kg/m³

now, for hydrostatic pressure we have, , Pa..........................(1)

where, is density of water

is acceleration of gravity , 9.81 m/s²

is level of water

here, given gauge pressure, P= 100 kPa= 10010³ Pa

now, (1)=>

=> m

=> m