I know that 1 litre of water is = 1 kg , but is there a difference in fresh water and sea water
2007-04-04 02:03:44 · 9 answers · asked by chris issack 1 in Environment
Whoops, someone misspoke - it is 35 grams of salt per liter of seawater, not 3.5. I think they meant to say that the salt is 3.5% of the weight.... that is, a liter of seawater weighs about 1035g, not 1 kg.
The weight of seawater definitely changes from place to place - say, in surface water in the tropics it would be heavier because of evaporation making it more dense. And in the arctic in summer it might be less because of melting of ice putting more freshwater into the ocean.
This is always a consideration for ships entering harbors or rivers. The freshwater from the land is less dense, not 1035 g per liter, but maybe only 1010, so the displacement of a fully loaded ship is changed. A ship that carries a lot of cargo will sink deeper in the water as it enters a river where the water density is less. It could run aground if the captain is not alert to the risk!
2007-04-04 10:04:34 · answer #1 · answered by matt 7 · 0⤊ 0⤋
1
2016-01-21 21:09:48 · answer #2 · answered by Vanneath 1 · 0⤊ 0⤋
One litre (1000 millilitres) weighs exactly one thousand grams only if it is at precisely 21 degrees celcius and it has been purified and deionised.
Sea water, as noted above, has many impurities and dissolved solids in it. It's mass (there is no such thing as weight - that's just a convenient way for the lay person to understand the complexities of the physics involved) also depends a lot on the temperature, but only when you get into the milligram range of things...
so the short answer is NO. A litre of sea water would be at an average temperature of about 25 degrees so it would weigh more like 1003.8 grams.
Hope this helps!
Love and Light,
Jarrah
2007-04-04 02:45:50 · answer #3 · answered by jarrah_fortytwo 3 · 0⤊ 0⤋
I litre of sea water is actually heavier than 1 kg. But most approximations refer to 1 kg. Actually where you collect this liter of sea water will have an impact on the actual weight. For example, 1 liter of sea water collected in the Caribbean will not weigh the same as 1 liter collected in the Bering Strait.
2007-04-04 02:11:30 · answer #4 · answered by misoma5 7 · 0⤊ 0⤋
My Answer is
1 liter of fresh water = 1 kg .
1 liter of sea water = 1 X 1.025 = 1.025 kg
Specific Gravity of fresh water = 1
Specific Gravity of Sea water = 1.025.
2016-05-10 00:39:13 · answer #5 · answered by arun 1 · 0⤊ 0⤋
No.
1Lt of PURE water is 1 Kg
The sea water is not pure, cause the salt and other elements that make the water heavier.
The weight of sea water depend on the sea.... In the dead sea (the saltiest sea and the lowest place in the world), the water is so heavy you can lay and read a newspaper..........
2007-04-04 02:15:22 · answer #6 · answered by drorba1 3 · 0⤊ 0⤋
Sea water contains salt and many other chemicals and elements disolved in it. Typically 3.5g per litre so 1 litre would weigh about 1.0035kg.
2007-04-04 02:07:58 · answer #7 · answered by Trevor 7 · 1⤊ 0⤋
1 liter of pure water = 1kg. Salt water would be heavier.
2007-04-04 02:47:16 · answer #8 · answered by campbelp2002 7 · 0⤊ 0⤋
yes I think.....probably has to do with difference in densities =p
2007-04-04 02:07:01 · answer #9 · answered by Anonymous · 0⤊ 0⤋