Formula of pressure

Answer 1

hydrostatic pressure

P= hdg

where;

p= pressure (N/m2 or Pa)

h=height (m)

d= density (kg/m3)

g= acceleration due to gravity

(9.81 m/s2)

e.g.

example problem.

a pressure gage register 40 psig in a region where the barrometer is 14.5 psia. fine the absolute pressure in psia., and kPa(KN/m2)

give.

Pg= 40 psia

Po= 14.5 + 40

p=54.5

b. P=54.5psia

=54.5 lb.....6894.8 N/m2

In2 1 psi

=37576606 N/m2

375.77 KN

p= 375.77 KPa