chapter 6- equilibria Flashcards
(7 cards)
1
Q
what is dynamic equilibrium
A
when forward and reverse reactions in a closed system happen at the same rate and the concentration of the reactants and products stays the same
2
Q
what is Le Chateliers Principle
A
it states that if a system that is in dynamic equilibrium is subjected to a change in conditions the system will move in the direction to oppose the change
3
Q
what effects the value of Kc
A
a change in temperature
4
Q
ΔH for exothermic reaction
A
negative ΔH
4
Q
what happens to the equilibrium if Kc increases in value/ decreases in value
A
- the equilibrium moves to the right- forward direction (more product)
- equilibrium shifts to the left- backward direction (less product)
5
Q
A
6
Q
ΔH for endothermic reactions
A
ΔH positive
