BIOL Chapter 3
The clinging of one substance to another
The measure of how difficult it is to stretch or break the surface of a liquid
The energy of motion can collectively be defined as:
(The faster it moves, the greater the energy)
The measure of matter's
kinetic energy due to the motion of its molecules:
The measure of heat intensity that represents the
How does an ice cube cool a drink?
Not by adding coolness, but by absorbing heat from the drink itself
What is the average human body temperature in Celsius?
37 Degrees Celsius
What is a calorie?
The amount of heat it takes to raise the temperature of 1g of water by 1 degree celsius
One joule equals how many calories?
1 Joule = 0.239 Calories
Define specific heat:
The amount of heat that must be gained or lost to change the temperature of the substance by 1 degree celsius
Why does water have such a high specific heat?
Because of the hydrogen bonds in water molecules. Enough heat must be absorbed to break those bonds, which are very strong.
Define hydration shell:
The sphere of water molecules around each dissolved ion of solute
Any substance that has an affinity for water
A stable suspension of fine particles in a liquid
Can a substance by hydrophilic without dissolving in water?
What is a buffer?
Substance that minimizes changes in the concentrations of H
in a solution
dissolves in seawater, it reacts with water to form what?
Carbonic Acid, a process collectively known as ocean acidification which lowers the overall pH of the ocean
Acid Precipitation has a pH lower than ____?
BIOL Chapter 3