what is the relationship between salinity, temperature, and density.?
90401
The higher the salinity the more resistant something is to a cold temperature change. Meaning that it takes it longer to freeze. Frozen things are more dense, so something that takes longer to freeze is less dense.
184315
It's 277K.\nWater density is greatest at 4 degrees Celsius (O degrees Celsius = 273K, so 4 degrees Celsius = 277K).\nWhen the temperature decreases to 0 Celsius, the density of water decreases to 0.999 g/cm^3 and the volume increases about 10%.\nThat's why ice floats on rivers - because at 0 degrees Celsius it has lower density than water!\n\nGreetings from Poland!
884148
Heating, cooling, rotation of the Earth, gravitational pull from sun and moon (which also causes the tides), melting icecaps that decrease the salinity of the oceans, which changes the density of the water, wind...
495414
125% the density of water.
895667
density = Mass/Volume\nDensity of water=1kg/m^3 or (g/cm^3)\ntherefore density of soda here =1\nvolume 2 L= 2 m^3\nso\nMass of the soda =density of soda X Volume of soda= 1X 2= 2 Kg
879947
Hello,\nDensity is mass per unit volume.  The density of fresh water is one gram of mass per cubic centimeter.  Since, the ocean water has salt in it, there is more mass per cubic centimeter of salt water.  If you think about a glass full of fresh water and a glass full of salt water, you can easily see that the glass full of salt water has a lot more material(mass) per cubic centimeter than the fresh water does.  So the glass full of salt water (or the ocean)is more dense than the glass full of fresh water.\nAnd that affects a boat by making it float higher.  When an object is placed in water, it displaces as much mass of water as is contained in the object.  Again you can think of a glass of water.  If the glass is filled to the top and you place an object of mass M-grams in the glass, then the amount of water that spills out is M-grams.  The object displaces the mass of the water by sinking into the glass.  Once it has displaced M-grams of mass, it can't displace any more, therefore it will stop sinking as soon as it displaces M-grams.  So since each cubic centimeter of salt water is made up of more mass than fresh water, the object will displace less cubic centimeters of salt water than of fresh water, so it will float higher.
371312
Finding the density of a gas requires information on pressure, and temperature.  d=pM/RT where d is density, p=pressure in atm, M is molar mass, R is the gas constant, and T is temperature in kelvin.  For a liquid the only factors to calculate density are mass, volume and temperature.  d=m/V...at a given temperature.  For solids the mass and volume are only needed.
916456
The density of water goes down when it is frozen and down when it is heated, so I would say just above freezing.  According to the website, about 4 degrees C.  The density of water at this temperature is 1.000g/cm3
782736
If ideal gas law is obeyed...\n\ndensity = mass/V == n/V\n\nPV = nRT\nP = (n/V)RT\n\nIf temp is held constant then increasing density increases pressure.
822535
temperature, pH, concentration of nutrient, type of nutrient, type of bacteria, amount of light
122833
pH level, buffering capacity (alkalinity), general hardness and salinity
1143445
Water has a density maxima at 4C
314230
yes...if you change the temperature....the density of water for example changes with its temperature....
737456
The temperature of the ocean at depth, anything more than several hundred feet, is 3.98 degrees C.  This is the temperature at which water is densest.\n\nIf any geothermal heat from the sea floor warms the very deepest water, it becomes less dense and rises.  And any shallower water warmed by the sun is too buoyant to descend towards deeper water.  3.98 degrees C is it, all the way to the bottom.
280201
Density = mass/volume
699868
To sink down, it makes the density become more than the sdea water. It's done by filling the tanks with water, with pressure, making the temp lower. (At constant  volume, if the temperature is invertly proportional to the pressure). i.e increase in pressure at const volume, with decresing temperature increases the density. \n\nThe quite opp makes the submarine float up.
912617
P=P(0)*exp(-1.1e-4*H)\n\nP(0) is the pressure at sea level. Note it's temperature dependent and it assumes a stable Boltzmann type distribution.