CHEMICAL CHANGE: CHEMCIAL EQUILIBRIUM Flashcards
1
Q
Open system
A
A system which continuously interacts with the environment – it exchanges matter and energy with its environment.
2
Q
Closed system
A
A system that only exchanges energy with its surroundings, but it does not exchange matter with its surroundings.
3
Q
Reversible reaction
A
A reaction is reversible when products can be converted back to reactants.
4
Q
Chemical equilibrium
A
Dynamic equilibrium when the rate of the forward reaction equals the rate of the reverse reaction.
5
Q
Factors that influence the equilibrium position
A
Pressure (gases only), concentration and temperature.
6
Q
Le Chatelier’s principle
A
When the equilibrium in a closed system is disturbed, the system will reinstate a new equilibrium by favouring the reaction that will oppose the disturbance.
