Chemical eqm Flashcards
1
Q
Define irreversible reaction
A
- go to completion
- limiting reagent used up
- represented by full arrow
2
Q
Define reversible reaction
A
- chemical reactions proceed from reactants to products and vice versa
- forward and backward reactions occur simultaneously
3
Q
How temperature affects reaction
A
- rise in temp encourages endo reaction more
- reduction in temp encourages exo reaction more
4
Q
Closed system
A
- situation where none of substances are being added or removed
- allows eqm to be formed when it:
- contains mixture of reactants and products
- no interaction with surroundings
5
Q
Dynamic equilibrium
A
- reversible reaction
- rates of forward rxn = rate of backward rxn
- no change in conc of reactants and products
6
Q
What it means when an eqm is reached
A
- reactions have not stopped
- forward rxn making products at same rate as
- backward rxn making reactants
- dynamic: moving/changing
7
Q
Factors for the formation of chemical eqm
A
- reaction is reversible
- carried out in closed system
- external conditions (eg. temp, conc, pressure) don’t change
