Rate of Reaction Flashcards
The rate of reaction is defined as…….
The change in concentration per unit time of any one reactant or product
What is Instantaneous rate of reaction
It is the rate of reaction at any one particular time during the reaction
What are the Five factors Affecting Rates of Reaction?
Nature of reactants Particle Size Concentration Temperature Catalysts
What is a catalyst?
A catalyst is a substance that alters the rate of a chemical reaction but is not used up in that reaction
What is an enzyme
An enzyme is a substance that is produced by a living cell and acts as a biological catalyst
What is Homogeneous Catalysis
It is catalysis in which both the reactants and the catalyst are in the same phase
What is Heterogeneous catalysis?
It is catalysis in which the reactants and the catalyst are in different phases
What is Autocatalysis?
Is catalysis in which one of the products of the reaction acts as a catalyst for the reaction
What is a catalytic converter
It is a device in the exhaust system of a motor vehicle which contains catalysts to convert pollutants in the exhaust gases to less harmful substances
What is a catalyst Poison
It is a substance that makes a catalyst inactive
What is Effective collision
It is one that results in the formation of products
What is Activation Energy
It is the minimum energy that colliding particles must have for a reaction to occur
What is a Reaction Profile Diagram
It is a graph which shows the change in energy of a chemical reaction with time as the reaction progresses
Activation energy is
Minimum combined energy of colliding particles for a reaction to take place
