Defintions Flashcards
1
Q
Define closed system.
A
A closed system(in chemistry)as one in which mass is conserved
inside the system but energy can enter or leave the system freely.
2
Q
What is an open system?
A
An open system (in chemistry) as one in which both energy and matter can be exchanged between the system and its surroundings.
3
Q
What is Le Châtelier’s principle?
A
Le Châtelier’s principle: ‘When an external stress (change in pressure, temperature or concentration) is applied to a system in dynamic chemical equilibrium, the equilibrium point will change in such a way as to counteract the stress’
