Question

According to LeChatelier's Principle, chemical equilibria respond to reduce an applied stress
to a system. Choose all stressors that will cause a shift in the equilibrium of a reaction.
(1 point)
Temperature
Pressure
Catalyst
Concentration

Answer 1

According to Le Chatelier's Principle, the following stressors can cause a shift in the equilibrium of a reaction:

1. **Temperature** - Changing the temperature can shift the equilibrium position depending on whether the reaction is exothermic or endothermic.

2. **Pressure** - Changing the pressure (by changing the volume of the container) can affect equilibria involving gases, favoring the side with fewer moles of gas if pressure is increased.

3. **Concentration** - Changing the concentration of either reactants or products will shift the equilibrium to counteract the change.

A **catalyst** does not affect the position of equilibrium; it only speeds up the rate at which equilibrium is reached.

So, the stressors that will cause a shift in the equilibrium of a reaction are:

- **Temperature**
- **Pressure**
- **Concentration**