Properties of Water and Seawater Flashcards
When 1 gram of ice is at a temperature of 0 degrees Centigrade how many calories must be added for the water to melt?
80 Calories
What is the latent heat of Vaporization?
The amount of energy needed to break the intermolecular bonds and change the state from liquid to gas
When one gram of liquid water is at a temperature of 100 degrees Centigrade how many calories are required to vaporize the water?
540 Calories
The conversion of a liquid to a gas below its boiling point is called what?
Evaporation
The latent heat of evaporation at 20 Degrees Centigrade is what?
585 Calories
Define Heat Capacity
The amount of heat required to raise the the temperature of 1 gram of a substance 1 degree Centigrade
The angle between the Hydrogen atoms in a water molecule has a measure of how many degrees?
105 Degrees
Water Density is affected by
Temperature, Salinity, and Pressure
Define Thermal Contraction
The idea that the density of most substances increases as its temperature decreases
Thermal Contraction in pure water exist only to a certain temperature what is this temperature?
4 Degrees Centigrade
Ice is less dense than water because
Ice crystals take up more volume than liquid water which causes the volume to expand and density to decrease
What is the latent heat of melting?
The energy needed to break the intermolecular bonds that hold water molecules rigidly in place.
Define Salinity
The total amount solid material dissolved in water
Seawater is about how many times saltier than fresh water?
220 Times Saltier
What is the Principle of Constant Proportions?
All the major dissolved constituents occur nearly everywhere in the ocean in the exact same proportions