Chemical Equillibrium Definitions Flashcards
Le chateliers principle
When an external stress is applied to a system in dynamic chemical equilibrium, the equilibrium point will change in such a way as to counteract the stress
Dynamic chemical equilibrium
A reversible reaction in which the forward and the reverse reactions are taking place at the same rate, and hence the concentrations of reactants and products are constant
Closed system
A system in which mass is conserved inside the system but energy can enter or leave the system freely
Open system
A system in which both energy and matter can be exchanged between the system and its surroundings
Reversible reaction
A reaction in which products can be converted back into reactants
Factors affecting kc value
Temperature only
High and low kc values
If kc>1 High yields (products favoured)
If 0<kc<1 Low yields (reactants favoured)
