| p= 1 bar, T = 20º C | p= 1000 bar, T = 20º C | |
|---|---|---|
c_{\rm w} | 0.4589 · GPa-1 | 0.37 · GPa-1 |
The compressibility of water is a function of pressure and temperature. At 0 °C, at the limit of zero pressure, the compressibility is 5.1×10−10 Pa−1.
At the zero-pressure limit, the compressibility reaches a minimum of 4.4×10−10 Pa−1 around 45 °C before increasing again with increasing temperature.
As the pressure is increased, the compressibility decreases, being 3.9×10−10 Pa−1 at 0 °C and 100 MPa (1,000 bar).