Prelab Questions:
1. State what happens when a chemical reaction reaches equilibrium, including what
happens to the concentration of each component of the reaction as well as rates of the
forward and reverse reactions.
the rate of the reaction and the rate of the reaction are equal to each other.
2. Define Le Châtelier’s Principle.
Changes in concentration.
Changes in pressure.
Changes in temperature.
Use the following hypothetical reaction to answer the following questions:
2 A(g) + B(g) + 100 kJ⇌ C(g)
3. How do changes to pressure affect the reaction’s equilibrium?
a pressure increase shifts an equilibrium to the side of the reaction with the fewer number of moles of
gas
4. Describe how changes to concentration of each component will affect the reaction’s
equilibrium.
he equilibrium will shift to minimise the effect of that change.
5. Describe how changes to temperature will affect the reaction’s equilibrium.
Increasing the temperature decreases the value of the equilibrium constant.