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Generally the Oceans are more saline in the tropics, that is to say the sea is less salty towards the polar regions.
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What is the density in seawater determined by?
Seawater's density varies by temperature and salinity. I.e., cold water is more dense than warm water, and water with a higher salinity (more dissolved salt) is less dense than water with a lower salinity.
What is the average salinity in the oceans?
The average salinity of seawater is 35 parts per thousand (or ppt).
What is the average density of seawater?
The density of surface seawater ranges from about 1.020 to 1.029 g·cm-3, depending on the temperature and salinityThe average density of seawater at the surface of the ocean is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4°C) because of the added mass of the salts.
Why does sea water not freeze?
Seawater does freeze, but it freezes at a lower temperature than pure water. When compounds, like salt, are dissolved in water, it freezes at a lower temperature. This is called freezing point depression. Seawater has a salinity of 3.5% and freezes at about 28 degrees F or -2 degrees C.
Why the density decrees at higher altitudes?
the density decreases because their is more air pressure in lower altitudes and as you go up their is less air pressure making it hard to breath
What is the density in seawater determined by?
Seawater's density varies by temperature and salinity. I.e., cold water is more dense than warm water, and water with a higher salinity (more dissolved salt) is less dense than water with a lower salinity.
Is a high salinity solution less dense than water?
No, increasing salinity results in higher density. This density increase means you will also be able to float more easily in more saline water. The higher the salinity the lower the temperature it will freeze.
If freshwater and seawater meet at the mouth of a river which one sinks and why?
Seawater is more dense than freshwater. Therefore the seawater would sink lower than the freshwater. Ships do indeed stay higher in seawater because of the higher density or specific gravity of seawater over freshwater
When the increase in the salinity of seawater result in an increase or decrease in density?
If you compare the density of sea water, and then compared the extremely salty Dead Sea, you will find that the more salt in the water, the higher is the density. Which is why you can float on the Dead Sea while reading a newspaper (which I once saw demonstrated in a documentary). Also, a ship will float lower on a fresh water lake, and float higher on salt water.
What is the average salinity in the oceans?
The average salinity of seawater is 35 parts per thousand (or ppt).
What evidence supports the fact that temperature of seawater is more a controlling factor of density than salinity?
The question is ambiguous, controlling factor of what? Specific gravity will change according to temperature (all other things being equal) Salinity will not change with temperature. Water will is most dense at about 4 degrees Celsius, and will become less dense at higher and lower temperatures (to a point)
What is the average density of seawater?
The density of surface seawater ranges from about 1.020 to 1.029 g·cm-3, depending on the temperature and salinityThe average density of seawater at the surface of the ocean is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4°C) because of the added mass of the salts.
What body of water has the lowest density?
Surface mixed zone
Would you expect the seawater just below the floating ice in the Arctic Ocean to be higher or lower in salinity then the water in the deep zone there?
When ocean water freezes into sea ice, some of the salt is incorporated into the new ice. Thereafter, that salt drains as brine (salt plus water), causing the layer of water below to be of higher salinity.
Why do high latitude water lack a pycnocline?
Density variations of seawater with latitude are very similar to those for temperature variations with latitude. Because of the influence of temperature on seawater density, low latitudes exhibit lower densities at the surface that rapidly increase with depth. Higher latitudes exhibit little or no difference in density owing to the lack of a thermocline. Such a rapid change in density with depth is called a pycnocline, and like a thermocline is absent at higher latitudes.
What are two causes of density in deep current waters?
Deep Currents Occurs when the density of the water increases. Density is based on two main things it is the Salinity is how much salt and other solids are in it and it is also the temperature of the water.The lower the temperature the lower the dense the water becomes. Salinity (how much salt) of the water and low temperatures.
What has a higher density lower or higher masses?
i do not no
