Studied by 3 peopledefine adhesion
unlike molecules that stick together
define cohesive
high surface tension - can resist low level external forces
define adhesive
allows for potential capillary action - transpiration stream in plants
define cohesion
like molecules that stick together
what are the thermal properties of water?
absorbs large amounts of heat energy (hydrogen bonds first broken)
specific heat capacity (1g by 1 C)
makes for an effective coolant - evaporation of sweat - absorption of heat
what are the solvant properties of water?
large amounts of water = weak ionic bonds and form dispersive hydration shells
make water a factor of metabolic reaction
define hydrophilic
substances that can dissolve in water
define hydrophobic
substances that can not dissolve in water
name any other properties
transparent - lets light pass through (important for photosynthesis and vision)
expands when frozen (less dense) - important for life on earth; ice floats, oceans don’t freeze
Note
Flashcard