Question
Which of the following factors will change the value of the equilibrium constant K?
Question 7 options:
Decreasing the concentration of a product
Increasing volume
Increasing the concentration of a reactant
Adding a catalyst
Question 7 options:
Decreasing the concentration of a product
Increasing volume
Increasing the concentration of a reactant
Adding a catalyst
Answers
GPT-4o mini
The equilibrium constant \( K \) for a given reaction is affected by changes in temperature but is not affected by changes in concentration of reactants or products, volume, or the addition of a catalyst. Here's how each option impacts the equilibrium constant:
1. **Decreasing the concentration of a product**: This changes the position of equilibrium but does not change the value of \( K \).
2. **Increasing volume**: This can shift the position of equilibrium (depending on the number of moles of gas on either side of the reaction), but does not change \( K \).
3. **Increasing the concentration of a reactant**: Like decreasing a product, this affects the position of equilibrium but does not change \( K \).
4. **Adding a catalyst**: A catalyst speeds up the rate at which equilibrium is reached but does not affect the value of \( K \).
Therefore, none of these factors (decreasing the concentration of a product, increasing volume, increasing the concentration of a reactant, adding a catalyst) will change the value of the equilibrium constant \( K \). The only factor that does change \( K \) is a change in temperature.
1. **Decreasing the concentration of a product**: This changes the position of equilibrium but does not change the value of \( K \).
2. **Increasing volume**: This can shift the position of equilibrium (depending on the number of moles of gas on either side of the reaction), but does not change \( K \).
3. **Increasing the concentration of a reactant**: Like decreasing a product, this affects the position of equilibrium but does not change \( K \).
4. **Adding a catalyst**: A catalyst speeds up the rate at which equilibrium is reached but does not affect the value of \( K \).
Therefore, none of these factors (decreasing the concentration of a product, increasing volume, increasing the concentration of a reactant, adding a catalyst) will change the value of the equilibrium constant \( K \). The only factor that does change \( K \) is a change in temperature.