2.2 Water
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The specific heat capacity
the heat required to raise the temperature of the unit mass of a given substance by a given amount.
Latent heat of vaporization
The amount of energy needed to turn liquid water into water vapour (gas).
Latent heat of fusion
:The amount of heat energy that must be removed from water to turn it to ice is very great, then that needed to melt ice.
Adhesion
:Adhesion is the tendency of dissimilar particles or surfaces to cling to one another.
Cohesion
:Cohesion is the action or property of like molecules sticking together, being mutually attractive.
Surface tension
: the attractive force exerted upon the surface molecules of
What are polar compounds
Polar compounds are those with distinct regions of positive and negative charge.
Viscosity
the state of being thick, sticky, and semifluid in consistency, due to internal friction
hydrogen bond
a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other Oxygen atom = slightly negative charge Hydrogen atoms = slightly positive charge
Learning Outcomes
Identify the structure of water(Grade C) Describe the properties(Grade B) Explain the importance of each property to living organism.(Grad A/A)
Properties of water
Metabolic importance High heat capacity Heat of vaporization Cohesive properties Useful as a solvent