Cambridge O Level Chemistry · Syllabus 5070 · Chemical Reactions
Pressure Effect on Equilibrium
What is Pressure Effect on Equilibrium?
The response of a gaseous equilibrium to a change in pressure. Raising the pressure moves the position of equilibrium towards the side of the equation with fewer gas molecules, and lowering it moves the position towards the side with more; if both sides have equal numbers of gas molecules, changing the pressure does not move the position at all.
This definition is part of the Chemical Reactions chapter in Cambridge O Level Chemistry.
Reviewed by Academiq Edu Instructor PanelLast reviewed Syllabus 2026-2028

