Question

The density of sea water is ~1025 kg/m3, the maximum depth of the Atlantic ocean is ~8500 m (8.5 km).
(a) Calculate the water pressure at this depth.
(b) By what factor is the pressure greater at these depths compared to the ocean surface?

Answer 1

Answer:

A. Given,

Density (p) = 1025 kg/m³

Height/Depth (h) = 8500 m

Atmospheric Pressure = 1.013*10⁵ Pa

Gravitational Force (g) = 9.8 m/s²

P = Atmospheric Pressure + hpg

= [1.013*10⁵] + [8500*1025*9.8]

= 101300+85382500 Pa

= 85483800 Pa

Or,

= 8.5*10⁷ Pa

B. Pressure increases by depth and at the bottom of an ocean, a pressure depends upon:

1. Gravitational Force of the place.

2. Density of water.

3. Atmospheric Pressure.

4. Depth of the Ocean.

Hope this helps.