CAMPBELL BIOLOGY CHAPTERS 3
EXAM Q’S AND A’S
polar molecule - ANSWER-molecule with an unequal distribution of charge, resulting
in the molecule having a positive end and a negative end
4 emergent properties of water - ANSWER-1. Cohesion
2. Temperature Moderation
3. Expands upon freezing
4. Versatile as solvent
cohesion - ANSWER-tendency of molecules of the same kind to stick to one another
adhesion - ANSWER-attraction between molecules of different substances; in plants,
attraction between unlike molecules
surface tension - ANSWER-a measure of how difficult it is to stretch or break the
surface of a liquid
moderation of temperature by water - ANSWER--absorbs heat from air that is
warmer and releasing the stored heat to the air that is cooler.
-high specific heat/ high heat of vaporization
kinetic energy - ANSWER-energy of motion
heat - ANSWER-a form of energy that is transferred by a difference in temperature
temperature - ANSWER-a measure of the intensity of heat in degrees, reflecting the
average kinetic energy of the molecules, regardless of volume.
calorie - ANSWER-unit of heat defined as the quantity of heat required to raise the
temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
joule - ANSWER-si unit of energy
specific heat - ANSWER-the heat required to raise the temperature of one gram of a
substance one degree centigrade
evaporation - ANSWER-the process by which water changes from liquid form to an
atmospheric gas
heat of evaporation - ANSWER-the quantity of heat a liquid must absorb for 1 g of it
to be converted from the liquid to the gaseous state
evaporative cooling - ANSWER-Property of a liquid whereby the surface becomes
cooler during evaporation because of a loss if highly kinetic molecules to the
gaseous state
EXAM Q’S AND A’S
polar molecule - ANSWER-molecule with an unequal distribution of charge, resulting
in the molecule having a positive end and a negative end
4 emergent properties of water - ANSWER-1. Cohesion
2. Temperature Moderation
3. Expands upon freezing
4. Versatile as solvent
cohesion - ANSWER-tendency of molecules of the same kind to stick to one another
adhesion - ANSWER-attraction between molecules of different substances; in plants,
attraction between unlike molecules
surface tension - ANSWER-a measure of how difficult it is to stretch or break the
surface of a liquid
moderation of temperature by water - ANSWER--absorbs heat from air that is
warmer and releasing the stored heat to the air that is cooler.
-high specific heat/ high heat of vaporization
kinetic energy - ANSWER-energy of motion
heat - ANSWER-a form of energy that is transferred by a difference in temperature
temperature - ANSWER-a measure of the intensity of heat in degrees, reflecting the
average kinetic energy of the molecules, regardless of volume.
calorie - ANSWER-unit of heat defined as the quantity of heat required to raise the
temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure
joule - ANSWER-si unit of energy
specific heat - ANSWER-the heat required to raise the temperature of one gram of a
substance one degree centigrade
evaporation - ANSWER-the process by which water changes from liquid form to an
atmospheric gas
heat of evaporation - ANSWER-the quantity of heat a liquid must absorb for 1 g of it
to be converted from the liquid to the gaseous state
evaporative cooling - ANSWER-Property of a liquid whereby the surface becomes
cooler during evaporation because of a loss if highly kinetic molecules to the
gaseous state
