water Flashcards
High specific heat capacity
Because water molecules stick together, it takes more energy (heat)
to separate them than would be needed if they did not bond to one
another. For this reason the boiling point of water is higher than
expected.
ecosystem maintains etc.
latent heat
Hydrogen bonding between water molecules means that it requires a
lot of energy to evaporate l gram of water. This energy is called the
latent heat of vaporisation. Evaporation of wacer such as sweat in
mammals is therefore a very effective means of cooling because body
heac is used to evaporate the water.
bugs life - cohesion
The tendency of molecules to stick together is known as cohesion.
With its hydrogen bonding, water has large cohesive forces and these
allow it tO be pulled up through a tube, such as a xylem vessel
Water as a solvent
Water readily dissolves other substances:
metabolism
water is used in many metabolic processes