Find the pressure 200 m below the surface of the ocean if pressure on

1.	Find the pressure 200 m below the surface of the ocean if pressure on the free surface of liquid is one atmosphere. (Density of sea water = 1060 kg/m3 )
Answer» Data : h = 200 m, p = 1060 kg/m³ , p₀ = 1.013 × 10⁵ Pa, g = 9.8 m/s² Absolute pressure, p = p₀ + hρg = (1.013 × 10³ ) + (200)(1060)(9.8) = (1.013 × 10⁵ ) + (20.776 × 10⁵ ) = 21.789 × 10⁵ = 2.1789 MPa

Find the pressure 200 m below the surface of the ocean if pressure on the free surface of liquid is one atmosphere. (Density of sea water = 1060 kg/m3 )

Answer»

Data : h = 200 m, p = 1060 kg/m³ , p₀ = 1.013 × 10⁵ Pa, g = 9.8 m/s²

Absolute pressure,

p = p₀ + hρg

= (1.013 × 10³ ) + (200)(1060)(9.8)

= (1.013 × 10⁵ ) + (20.776 × 10⁵ )

= 21.789 × 10⁵ = 2.1789 MPa