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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 else can I help you with?
Measure of the amount of solids and salt dissolved in seawater?
Salinity
Concentration of salt in sea water?
The average salinity of seawater is about 35 parts per thousand or 3.5%.
Which process does not add salts to seawater?
Storms at sea. The evaporated water falls back into the ocean with no net effect on salinity.
What are the six ions in seawater?
The four MAIN IONS in seawater in descending order of abundance are: CI: Chloride Na: Sodium SO4: Sulfate Mg: magnesium Found in Leckie-Yuretich: Investigating the Ocean, Page 114, Seawater Salinity: The salt of the Ocean
The property of seawater used in induction salinometers to measure salinty is?
Induction salinometers measure the electrical conductivity of seawater. At a fixed temperature, the conductivity is approximately linearly proportional to salt concentration. The nature of the salt makes a difference, and sea salt composition varies somewhat around the world. For chemical solutions other than seawater, conductivity generally increases with increasing concentration, but the factor relating conductivity to concentration depends upon the composition of the solution. For a given concentration of salt near room temperature, conductivity increases about 2% for each degree Celsius of temperature increase because the viscosity of water decreases as the temperature rises. For solutions of strong acids, the temperature coefficient is nearer 1%/ degree. (The mechanism of conductivity in strong acid solutions differs from that in salt solutions.) Temperature coefficients are smaller at elevated temperatures. Weird nonlinearities occur in aqueous solutions below 4 degrees C, as the water begins to freeze. The temperature coefficient of seawater also depends slightly on the composition of the seawater. Commercial induction salinometers which calculate temperature corrections assume some standard composition of seawater, such as that found in Copenhagen bay. This may yield errors for seawater which has been concentrated by solar evaporation, such as in the Red Sea, or seawater which has been diluted by river water or ice melt.
What are 2 main factors that influence density if seawater?
Temperature and salinity are the two main factors that influence the density of seawater. Colder seawater is denser than warmer seawater, while seawater with higher salinity is denser than seawater with lower salinity.
What controls the density of sea water?
The main factors controlling the density of seawater are temperature and salinity. Colder water is denser than warmer water, and water with higher salinity is denser than water with lower salinity. Other factors, such as pressure and the presence of dissolved gases, can also influence seawater density.
What factor affects the density of seawater in addition to salinity?
Temperature is another significant factor that affects the density of seawater. As temperature decreases, seawater becomes denser and sinks, while warmer seawater is less dense and rises. The interactions between salinity and temperature play a crucial role in driving ocean currents and circulation patterns.
How does the salinity of sea ice compare to the salinity of normal seawater?
Ice has zero salinity. When it is frozen, the salt is pushed out. Therefore, since the salinity of normal seawater is about 35 ppt, it has 35 ppt more salinity than seawater.
Salinity in the ocean is highest in regions where is high and is low?
Salinity in the ocean is highest in regions where evaporation is high and precipitation is low. Density in seawater is determined by both temperature and salinity.
What causes the density of seawater to increase?
The density of seawater increases due to an increase in salinity (amount of dissolved salts), decrease in temperature, and increase in pressure. These factors lead to a higher concentration of molecules in the water, making it denser.
What is the most important factor affecting seawater density?
The most important factor affecting seawater density is its temperature. As temperature increases, seawater density decreases, causing it to expand and rise. Conversely, as temperature decreases, seawater density increases, causing it to contract and sink.
How does salinity and temperature effect thermohaline circulation?
Salinity affects thermohaline circulation by influencing the density of seawater. Higher salinity increases water density, promoting sinking of cold, dense water in polar regions. Temperature influences this circulation by controlling the density of water - colder water is denser and more likely to sink. Both factors work together to drive the global thermohaline circulation system.
What is the average salinity of seawater by weight?
The average salinity of seawater is about 35 grams of dissolved salts per kilogram of seawater, or 3.5% by weight.
Which is not a process the decreases the salinity of seawater?
Evaporation is a process that increases the salinity of seawater, not decreases it. Other processes that decrease the salinity of seawater include precipitation, melting of icebergs, and the input of freshwater from rivers.
How does temperature affect water?
The temperature and salinity of seawater determine its density. Water gets denser as it gets saltier and reaches a maximum density at 4 °C. Salinity does affect the boiling point and freezing point of water, but not its temperature.
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.
