Le Chatelier flask is a type of laboratory glassware used in experiments to demonstrate Le Chatelier's Principle, which states that when a system at equilibrium is disturbed, the system will shift to counteract the disturbance and restore equilibrium. This flask is often used in experiments where reversible reactions are studied, such as in chemical equilibrium demonstrations.
The Le Chatelier flask typically has a design that allows for controlled mixing or changing of conditions (like temperature or pressure) to observe how the system reacts. It's commonly used in chemistry classrooms or labs to visually demonstrate the effects of changes in concentration, temperature, or pressure on chemical equilibria.