4.3 Kinetics

Question 1

Rate of Reaction

Answer 1

the change of the concentration (amount) of a reactant or product with respect to time.

Question 2

Activation Energy

Answer 2

The minimum kinetic energy that the colliding molecules must have for the reaction to be successful and result in the formation of molecules.

Question 3

Rate Constant, K

Answer 3

The proportionality constant which links the rate of reaction to the concentrations in the rate equation.

Question 4

Order of Reaction

Answer 4

The order of reaction with respect to a given reactant, is the power to which its concentration terms are raised in the rate equation.

Question 5

Rate Determining Step

Answer 5

The slowest step in a reaction meachanism.

Question 6

Catalyst

Answer 6

A substancewhich alters the the speed of a reaction whilst remainiong unchanged chemically and unchanged in mass by the end of the reaction.

Question 7

Nucleophile

Answer 7

An ion or molecule with a lone pair of electrons which attacks reigons of low electron density.

Question 8

Substitution Reaction

Answer 8

A reaction where an atom or group of atoms in a molecule is replaced by another atom or group of atoms.