Rates and Equilibrium Flashcards
What term describes a system where forward and reverse reactions happen at the same rate?
Dynamic Equilibrium
Give the units of mean rate of reaction if the volume of product/reactant is measured
cm3/s
How does adding a catalyst affect the rate of reaction?
Increases the rate
What is the name for the minimum amount of energy needed for a successful reaction?
Activation Energy
What is the name given to a biological catalyst?
Enzyme
A reverse reaction is heated to form products. How would you form the reactants again?
Cool it down
What happens to the amounts of products and reactants at equilibrium?
They stay constant
Name two factors that affect the rate of a reaction involving a gas.
Temperature
Pressure
Describe how the rate of the forward reaction changed over time in a reversible reaction.
- initially fast
- slows down as reactants are used up
- constant when equilibrium is reached
What conditions are required for a system to reach equilibrium?
- must occur in a closed system
- reaction must be reversible
What feature of a rate graph tells you how quickly the reaction is happening?
the steepness of the curve
State the two conditions needed for a reaction to occur, according to collision theory.
Particles must collide with each other and with enough energy
