Chemistry - Reversible reactions and dynamic equilibrium

what principle states that if any of the conditions of a reversible reaction are changed, the system will shift to counteract the change?

Le Chantelier's principle

How does a dynamic equilibrium form?

A reversible reaction takes place in a closed system.

What is a closed system?

A system where neither matter nor energy can enter or leave

What happens when temperature is decreased?

The equilibrium position will shift in the exothermic direction.

What happens if temperature increases?

The equilibrium position will shift in the endothermic direction.

What happens if pressure increases?

The equilibrium position will shift towards the side with fewer moles overall.

What happens if pressure decreases?

The equilibrium position will shift in favour of the reaction that produces a greater number of molecules