Potential Energy Diagrams
Enthalpy and Entropy
Le Chatelier's Principle
Equilibrium
Collision Theory
100
A reaction where energy is located on the product side of a chemical reaction
What is an exothermic reaction?
100

the term used to describe the measure of disorder in a system.

What is entropy?

100
This stress causes an equilibrium to shift to the side of the reaction with less moles
What is increase in pressure?
100
This is when the rate of the forward reaction is equal to the rate of the reverse reaction.
What is chemical equilibrium?
100
According to this theory atoms, ions, and molecules can react to form products when they collide with one another
What is collision theory?
200
A reaction where the PE of products is greater than the PE of the reactants

What is an endothermic reaction?

200

the term used to describe the total energy usage of a  reaction

What is enthalpy?

200

direction the reaction will shift if you increase the concentration of reactants.

towards the products (right)

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

A collision that results in a chemical reaction is considered ______.

Effective

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

Which has more entropy? 1 M HCl or 6 M HCl

6 M HCl

300
When SO2(g) is removed from 2S02(g) + O2(g) <-- --> 2SO3 the reaction shifts in this direction.
What is left?
300

the type of equilibrium when a substance is at a temperature and pressure where it can change phases. 

Phase Equilibrium

300

True or False: Decreasing the temperature ensures an effective collision. 

False

400
The minimum energy that colliding particles must have in order to react.
What is activation energy?
400

Is entropy increasing or decreasing: a piece of molten metal cools and solidifies. 

entropy is increasing

400
Direction of the equilibrium shift when temperature is increased in an exothermic reaction.
What is left?
400
This stress only affects equilibrium reactions with at least one gas.
What is pressure?
400
What are 5 factors that affect the rate of a reaction?
What are pressure, catalyst, temperature, surface area, concentration (or any other legitimate response)?
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

According to Hess's Law, if the enthalpy of the reaction is 22 kJ, what will it be if the reaction was reversed and doubled?

-44 KJ

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

Phase equilibrium can only occur in a ______ system.

Closed

500
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?
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