Energy
Phase Changes
Thermochem
Kinetics
Vocabulary
100
The unit of energy
What is the Joule
100
The three states of matter
What is solid, liquid, and gas?
100
When is thermal equilibrium reached?
When both object are at the same temperature
100
The study of reaction rates is known as ___________.
What is chemical kinetics?
100
This type of energy flows from a warm object to a cool object
What is heat
200
Stored Energy
What is potential energy?
200
Definite volume and indefinite shape are characteristics.
What is a liquid.
200
This is an enclosed insulated container used to measure heat exchanges during chemical reactions.
What is a calorimeter?
200
With the presence of a catalyst, the rate of reaction will _________.
What is increase?
200
A measure of the average kinetic energy of particles
What is temperature
300
Energy available due to an objects motion
What is kinetic energy?
300
Describe solids, liquids, and gases in terms of their energy.
solid = lowest liquid = middle gas = most
300
This is the equation used to calculate the amount of heat needed to change a substances temperature.
What is Q=mcT
300
A process that releases heat into its surroundings.
What is an exothermic reaction?
300
The minimum amount of energy needed for a reaction to start.
What is activation energy?
400
The energy stored within a chemical bond
What is chemical potential energy?
400
This theory is used to describe an ideal gas
What is the kinetic theory of gases
400
The units for specific heat
What is J/(g*C)
400
What are the 5 factors that affect reaction rates?
What is temp, concentration, particle size, catalyst, inhibitor
400
The total internal energy of a system
What is enthalpy?
500
Energy associated with the random motion of atoms and molecules.
What is thermal energy
500
a. Solid -> Gas b. Solid -> Liquid c. Liquid -> Solid d. Liquid -> Gas e. Gas -> Liquid. What are the phase changes that
a. sublimation b. melting c. freezing d. vaporization e. condensation
500
The quantity of heat required to change the temperature of 1 g of water by 1 degree C
What is 4.18 joules
500
Explain the best way to keep a block of cheese from spoiling
keep cold, don't slice, lower concentration (dilute), add an inhibitor (preservative)
500
What does q, m, c, and ∆T represent?
What is heat, mass, specific heat, change of temperature
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