Equilibria Flashcards
What is Le Chatelier’s principle?
If a system at equilibrium is disturbed, equilibrium moves in the direction that reduces the disturbance
What happens to the equilibrium if the temperature is increased in an endothermic reaction?
Equilibrium shifts right
(yield of products increases)
What happens to the equilibrium if the pressure is increased?
It shifts to the side with less gas moles
How does a catalyst effect equilibrium?
It doesn’t
What condition affects the value of Kc?
Temperature
Deduce the expression for Kc?
Kc = [products] / [reactants]
What affect does increasing the temperature on an endothermic reaction have on Kc?
Kc increases
What affect does decreasing the temperature on an exothermic reaction have on Kc?
Kc increases
What are the units for Kc?
mol-1dm3
What temperature and pressure if preferred for the highest possible yield in industry?
Low temperature
High pressure
