Unit 3 - Equilibrium Flashcards
What happens to the concentrations of reactants and produces at equilibrium?
They are constant
Why is equilibrium sometimes called ‘dynamic equilibrium’?
The reaction continues after equilibrium has been reached
Where can equilibrium be established?
In a closed system
Why can equilibrium not be established in an open system?
Reactants or products may escape
What are the conditions that can alter the position of equilibrium?
Concentration
Temperature
Pressure
What effect does an increase in concentration of reactants have on equilibrium?
The equilibrium will shift to the product side (right)
What effect does an increase in concentration of products have on equilibrium?
Will shift to the reactants (left)
What effect does removing a reactant have on equilibrium?
Shift to the reactant side (left)
What effect does removing a product have on equilibrium?
Will shift to the right (products)
What effect does increasing temperature have on equilibrium?
It will shift to the endothermic side of the reaction.
Why does an increase in temperature result in the equilibrium to shift to the endothermic side?
To attempt to get rid of the rise in temperature by shifting to the side that takes heat in
What effect does decreasing temperature have on equilibrium?
Shift to the exothermic side
Why does decreasing temperature shift the equilibrium to the exothermic side?
To get the temperature up again by shifting to the exothermic side which produces heat
When does pressure effect equilibrium?
When gases are involved
What effect does increasing pressure have on equilibrium?
Will shift to the side with the smaller volume of gas
