Question

Find the density of seawater at a depth where
the pressure is 66 atm if the density at the
surface is 1100 kg/m^3
. Seawater has a bulk
modulus of 2.3 × 10^9 N/m^2
. Bulk modulus is
defined to be
Answer in units of kg/m^3

Answer 1

Explanation:

B = ρ₀ ΔP / Δρ

Plug in values (don't forget to convert atm to Pa).

2.3×10⁹ N/m² = (1100 kg/m³) (66 atm − 1 atm) (1.013×10⁵ Pa/atm) / (ρ − 1100 kg/m³)

ρ = 1103 kg/m³