A room temperature tank filled with glycerin is pressurized

A room temperature tank filled with glycerin is pressurized at the top with nitrogen at 25 psig. What is the pressure (psig) at the bottom if the tank is 100 cm deep?

Solution

There is 25 psig pressure due to nitrogen and then pressure due to 100 cm of glycerine

density of glycerine, d=1260 kg/m^3

Acceleration due to gravity,g=9.81 m/s^2

height , h=0.1 m

So pressure due to glycerine at bottom of tank is, P=dgh=1236 Pa

1 Pa=0.000145038 psi

SO, 1236 Pa=0.1795 psi

SO, pressure at bottom , P=P+25~25.18 psi