CHEMISTRY COMMUNITY

"Understand why reaction free energy depends on pressure and the equilibrium constant."
I understand the relationship between free energy and the equilibrium constant, but I'm not sure what pressure has to do with gibbs free energy. Is it referring to changing pressure by changing volume and applying Le Chatelier's principle or is it referring to a mathematical relationship that I may have missed?

Maybe it's talking about delta G, which uses RT lnQ, which may depend on pressures?

Because the equation -RTlnK includes the equilibrium constant and the constant can involve partial pressures.