- #1
javacola
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Homework Statement
In the Challenger Deep of the Marianas Trench, the depth of seawater is 10.9 km and the pressure is 1.16x10^8 Pa (about 1.15x10^3 atm.
A) If a cubic meter of water is taken from the surface to this depth, what is the change in its volume? (Normal atmospheric pressure is about 1.0x10^5 Pa. Assume that k for seawater is 45.8x10^-11 Pa^-1
B)What is the density of seawater at this depth? (At the surface, seawater has a density of 1.03x10^3 kg/m^3
Homework Equations
DeltaP/K
The Attempt at a Solution
Well for part A I multiplied the K of seawater by the pressure, and got the right answer which is -5.3 x 10^-2 m.
Now I'm kind of stumped on part B. I feel like it's incredibly easy but don't really know where to begin. Obviously m/v=d, but I'm not sure if that's relevant here. Don't know how to relate pressure or depth with density.