How will the equilibrium shift when the pressure is decreased on a gaseous reaction system at equilibrium? a There will be no change. b The equilibrium will shift to the side with fewer moles of gas. c The equilibrium will shift to the side with more moles of gas.
b The equilibrium will shift to the side with fewer moles of gas.
When the pressure is decreased, the system will try to counteract this change by shifting the equilibrium to the side with fewer moles of gas in order to increase the pressure. This helps to restore the equilibrium position and maintain a constant pressure.