Topic 16 Flashcards
What is the rate of reaction
The speed at which reactants are turned into products
What is the rate equation
rate = k[A][B] where A and B are order 1
What is the order of a substance
where the concentration of a substance changes in relation to the rate of reaction
What is the overall order of a reaction
Adding up individual orders of the reactants
What is the rate constant
k; the coefficient relating concentration to rate
What is half life
The time it takes for reactant concentrations to decrease to half its initial value.
What is the rate determining step
The slowest step in the reaction that determines the rate at which the reaction proceeds
What is the activation energy
The minimum quantity of energy which the reacting species needs to break its bonds (endothermic)
What is a heterogenous catalyst?
A catalyst which is a different state to the reactants; happens on its surface area
What is a homogenous catalyst?
A catalyst which is the same state to the reactants; combines to form an intermediate species then the catalyst reforms.
