Definitions Flashcards
What is collision Frequency?
It the number of collisions between particles per unit per time.
What is collision energy
Collision energy also known as kinetic energy is the combining energy of collided particles
Current orientation
It is the collision of two functional groups that is required for reaction success.
What is activation energy?
The minimum energy needed to start a chemical reaction
Homogenous Catalyst
The catalyst that is in the same phase or state as the reactants
Example
Catalyst: Sulphuric acid in making esters
A carboxylic acid and an alcohol react together to form an ester and water. This reaction is conducted in solution. The sulphuric acid catalyst is also in solution.
The catalyst works by pushing the reaction to the right, so more ester and water are made.
Heterogenous
The catalyst in a different phase or state as the reactants
Example
Catalyst: Iron in the Haber process
The surface of the iron helps brake down the strong triple bonds in the nitrogen molecules and helps nitrogen form bonds with the hydrogen.
Order of reaction
The order of reaction is the power to which a concentration term is raised to in a rate equation
Initial rate
An instantaneous rate taken at the start of a reaction
