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en.wikipedia.org/wiki/Properties_of_water

The unusual density curve and lower density of ice than of water is vital to life—if water were most dense at the freezing point, then in winter the very cold water at the surface of lakes and other water bodies would sink, the lake could freeze from the bottom up, and all life in them would be killed.

en.wikipedia.org/wiki/Density

To simplify comparisons of density across different systems of units, it is sometimes replaced by the dimensionless quantity "relative density" or "specific gravity", i.e. the ratio of the density of the material to that of a standard material, usually water. Thus a relative density less than one means that the substance floats in water.

www.answers.com/Q/What_is_the_density_of_water

The density of a material is defined as its mass per unit volume. The density of liquid water is normally given as 1000 kg/m3 or 1 g/cm3 as a very accurate estimate, but often ranges slightly ...

en.wikipedia.org/wiki/Seawater

Average density at the surface is 1.025 kg/L. Seawater is denser than both fresh water and pure water (density 1.0 kg/L at 4 °C (39 °F)) because the dissolved salts increase the mass by a larger proportion than the volume. The freezing point of seawater decreases as salt concentration

www.quora.com/What-is-the-density-of-water-in-lb-ft3

What is the density of water? How is the density of ice and water detemined? What can affect the density of water? Andrew Roberts, ... However, a useful tool is at: Thermophysical Properties of Fluid Systems thru which you can determine the answer in several units and for nearly any condition you desire. 26.4k views · View 4 Upvoters.

wiki.aapg.org/Formation_water_density

Formation water density is a function of three variables: Temperature Pressure Total dissolved solids (TDS) It is the mass of the formation water per unit volume of the formation water and is given in metric units (g/cm 3).For reservoir engineering calculations, it is considered equivalent to specific gravity.

wiki.aapg.org/Density-neutron_log_porosity

The density-neutron crossplot helps determine lithology of oil- or water-filled formations that are pure lithologies like sandstone, limestone, or dolomite. The density–neutron crossplot analysis can be ambiguous when the formation is of mixed mineralogies, like a dolomite-cemented sandstone.

simple.wikipedia.org/wiki/Density

For example, the density of water increases slightly between its melting point at 0 °C and 4 °C. When water freezes, it expands by about 9% in volume, making ice that is less dense than liquid water. Water expands as it drops below 4°C. Measures. Fresh water is often used as a standard of relative density.

www.oilfieldwiki.com/wiki/Density

Further, density may be expressed in terms of weight density (the weight of the material per unit volume) or as a ratio of the density with the density of a common material such as air or water. Measurement of density. The density at any point of a homogeneous object equals its total mass divided

www.answers.com/Q/What_is_the_density_of_water_kg_per_liter

The density of water is 1 gram/mL at around 4 degrees Celsius. As temperature rises, kinetic effects kick in causing the volume per unit mass of water to increase, thus decreasing the density of ...

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