Properties of Seawater
The unique properties of water are a result of what two elements?
hydrogen and oxygen
Substances with a high specific heat require what?
the transfer of large amounts of heat energy for small changes in temperature.
At the surface, the cohesive water molecules are arranged to produce an what type of membrane.
elastic
What is the formula for water density?
mass/unit volume
a molecular process where heat is passed on from molecule to molecule is what?
Conduction
What are covalent bonds?
shared electrons between hydrogen and oxygen
Water’s ability to accept or give off heat is very high or very low?
very high
What does high viscosity make floating?
Makes floating easier.
Does seawater have greater density than freshwater?
Yes
heat is transferred as water is cooled and sinks or is warmed and rises as a result of less density is what?
Convection
What percentage is water in boy and cells?
60% - 90%
what is specific heat?
a measure of how much heat is required to produce a unit change of temperature in a unit mass of a substance.
It is easier to swim in high viscosity water. True or False?
False
Does ocean pressure increase with depth?
Yes
the oceans are heated from above from solar radiation, this affects mostly shallow waters is what?
Because of the polarity water can form what?
weak bonds called hydrogen bonds
The ocean has a great resistance to temperature fluctuations. True or False?
True
What does heat do to viscosity?
Lowers it
At sea level the atmospheric pressure is what?
1 atm or 14.7 lbs per square inch.
Light energy can be absorbed and transmitted through what?
seawater
Water is essential for what?
Life
The making and breaking of hydrogen bonds in the liquid provides a weak force holding water molecules together called cohesion. True or False?
True
What does cold do to viscosity?
It raises it.
Water transmits heat in what 3 ways?
Conduction, Convection, and Radiation
Whait is used to determine the depth of seawater
sound