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Salt water is denser than fresh water. Since the buoyant force is equal to the weight of the displaced liquid or gas, an object of a certain volume will have more buoyant force pushing it up in salt water than in fresh water. It's sort of the same reason we can float on water but not in the air. Air is so much less dense than water that to float in it we need to displace a volume of it equal to the volume of a hot air balloon.
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How does temperature and salinity effect the stability of water?
The chemical stability of water is not affected by the salinity; also water decompose at very high temperatures.
How water temperature and salinity affect water density and how does this impact a diver?
Density falls as temperature rises, but increases as salinity rises. The only real effect on a diver is that of cold; unless you dive through a halocline (sudden boundary with much more or less salty water), which may affect your buoyancy. I've seen a photograph of a rather impressive halocline in a cave in which incoming fresh water from inland flowed onto sea-water. The diver was standing with his waist just below the boundary, and the optical effect of the halocline made him appear to be standing with his upper body in air. In fact the passage was filled completely with water!
Which condition of ocean water varies with the location and seasons?
salinity
What two characteristics of water combine to form a thermohaline?
temperature and salinity
What effect does rainfall have on salinity?
it adds more water to the salt water so there is not enough salt
How does salinity effect buoyancy?
Salinity increase the water density. Therefore the more salt you add to water, the greater its density becomes.The higher the density of the fluid, the greater the mass of the object that can float in it.Hence rise in salinity of a liquid will increase the buoyancy.
What happens to water if the salinity increases?
The heat capacity and freezing point decrease, evaporation slows, and osmotic pressure increases.
What is the effect of density on the buoyancy of an object?
greater density tends to less buoyancy
Why is the buoyancy force of dead sea so large?
The extreme salinity - saltiness - means the water there has a higher density than regular sea water. and the higher the density the greater the buoyancy.
Is the buoyancy of the Dead Sea because of the hyper salinity and is buoyancy experienced in lake Asal?
Salt does make a difference in buoyancy but if there is no salt then you shouldn't sink to the bottom. Your head will go under. Every object has some degree of buoyancy in water. Some have enough so that they float, others do not. _______ Actually, the Dead Sea is not 'buoyant'. Buoyancy is a property of a solid object you put in the water. The salinity of the dead sea increases the specific gravity of its water. Specific gravity is to liquids as density is to solids. So the water of the Dead Sea has a very high specific gravity.
How does buoyancy get affected by the amount salt added?
Simply, the greater the amount of salf dissolved in a body of water ('salinity') the greater its upward buoyancy force (more buoyant). The Dead Sea has very high salinity (it is more dense) meaning people who go swimming in it find they are able to float on the surface without effort.
How does climate effect salinity?
because it is cool
What effect salinity of the ocean?
It has effect on the marine life, especially in the anufacture of food.
Does salinity have an effect on the ocean life zones?
Yes. It does.
What two things effect the density of water?
Temperature and Salinity.
What effect does buoyancy have on items?
the effect that buoyancy has on items is floating, if the particular item floats it is positively buoyant, if it sinks it is negatively buoyant, if it neither floats or sinks it is neutrally buoyant. hope this helps!!
How does density effect bouyancy?
Buoyancy is the ability to float, so if the density is high, it'll hold up something. (see? FLOATING. BUOYANCY.)
