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Reaction Quotient (Q vs K) Simulator

Determine the direction of equilibrium shifts using Le Chatelier's Principle. Visualize the theoretical NO2/N2O4 system and click to solve for roots to snap directly into theoretical dynamic equilibrium.

GUIDED INQUIRY

Analyze the simulation using this focus prompt: "When we add a reactant, what happens to the value of Q immediately? Does K change?"

WHAT IS CHEMICAL EQUILIBRIUM?

Chemical equilibrium occurs in a reversible reaction when the rates of the forward and reverse reactions are equal. The **equilibrium constant** () describes the relative amounts of products and reactants at equilibrium.

LE CHATELIER'S PRINCIPLE

Le Chatelier's Principle states that if a system at equilibrium is stressed, the system will shift its equilibrium position to counteract the stress.

CORE FORMULAS

Equilibrium constant expression

AP EXAM CONNECTION

Unit: Unit 7: Equilibrium
Learning Objective: TRA-7.A

COMMON MISCONCEPTIONS

  • Thinking equilibrium means equal concentrations.

KEY TAKEAWAYS

  • Rate forward = Rate reverse at equilibrium.

DEEP DIVE: RELATED CONCEPTS

LE CHATELIER'S PRINCIPLE

Disturbing a system at equilibrium causes a shift to counteract the disturbance....

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