Help Please.?

Question

I know the four factors (nature of reactant, concentration& surface area, temperature, and catalyst) that may have an impact on systems at equilibrium, but I can’t answer the three below questions.

1. Which three of these factors can cause equilibrium shifts?
2. Which one of the factors can both cause equilibrium shifts and change the value of the equilibrium constant?
3. Which one of these factors can neither change the value of the constant nor cause equilibrium shifts?

Answer 1

1.nature of reactant, concentration & surface area, temperature
2.temperature
3.catalyst