A reaction where energy is located on the product side of a chemical reaction
What is an exothermic reaction?
100
we call this Kc
What is equilibrium constant?
100
This stress causes an equilibrium to shift to the side of the reaction with less moles
What is increase in pressure?
100
This stress only affects equilibrium reactions with at least one gas.
What is pressure?
100
This is when the rate of the forward reaction is equal to the rate of the reverse reaction.
What is chemical equilibrium?
200
What are 5 factors that affect the rate of a reaction?
What are pressure, catalyst, temperature, surface area, concentration (or any other legitimate response)?
200
The Kc expression for H2(g) + I2(g) <-- --> 2HI(g)
What is [HI]^2/[H2][I2]?
200
When SO2(g) is removed from 2S02(g) + O2(g) <-- --> 2SO3 the reaction shifts in this direction.
What is left?
200
This is the principle that states a system (rxn) in equilibrium will shift direction to balance any changes that are made.
What is Le Chatelier's Principle
200
According to this theory atoms, ions, and molecules can react to form products when they collide with one another
What is collision theory?
300
What is the effect of a catalyst on the reaction rate?
What is lowers the activation energy, creating a faster pathway for a chemical reaction?
300
Na+OH <---> NaOH Na is 0.500M, OH is 0.600M, and NaOH is 0.800M. What is the Kc of the equation?
What is 0.800/(0.500)(0.600) = 2.67
300
When pressure is increased on FeO(s) + CO(g) <-- --> Fe(s) + CO2(g) the equilibrium will shift in this direction.
What is will not move?
300
This is a number that relates the concentrations of reactants and products of a reversible chemical rxn at a given temperature.
What is equilibrium constant?
300
This involves a single event that cannot be broken down into smaller steps. It also involves the formation of new molecules or ions.
What is an elementary reaction?
400
The minimum energy that colliding particles must have in order to react.
What is activation energy?
400
For a particular reaction, Kc>Qc. Which way will the reaction shift to obtain equilibrium?
What is right?
400
Direction of the equilibrium shift when temperature is increased in an exothermic reaction.
What is left?
400
This is a reaction that proceeds until one reactant is used up.
What is an irreversible reaction?
(not in equilibrium)
400
In the reaction:
CuCO3(s) + 2HCl(aq) --> CuCl2(aq) + H2O(g) + CO2(g) powdering CuCO3 does this. (Think Collision Theory)
What is increase surface area and speed up reaction?
500
As two molecules collide and chemically react, they are thought to form a short-lived, unstable arrangement of atoms called this before breaking apart to form products
What is the activated complex?
500
You can do this if you divide the initial concentration by the Kc value and get a number larger than 500
What is disregard x in the Kc expression?
500
The shift in equilibrium when the pressure is increased on the following reaction: 2SO2(g) + O2(g) <--> 2SO3(g)
What is to the right (products)?
500
Before equilibrium is established, the rate of these will be decreasing.
What are reactants?
500
This states that all matter is made up of particles that are in constant motion because they possess a certain energy