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Chemical Equilibrium and Le Châtelier's Principle Quiz

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Chemical Equilibrium and Le Châtelier's Principle Quiz

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Questions and Answers

What is the primary objective of Le Châtelier's principle?

To predict and explain how changes in concentration affect the equilibrium of a closed system (correct)

To determine the rate of reaction in a dynamic equilibrium

To predict and explain how changes in volume affect the equilibrium of an open system

To analyze the impact of temperature on reaction rates

In the Sabatier process, what is the purpose of adjusting the concentrations of reactants or products, temperature, or pressure?

To decrease the concentration of methane in the equilibrium mixture for safety reasons

To increase the concentration of methane in the equilibrium mixture for practical use (correct)

To prevent the formation of carbon monoxide (CO)

To speed up the reaction without affecting the equilibrium

What happens to the runner if he changes the speed of the treadmill according to Le Châtelier's principle?

He will maintain the same speed to maintain equilibrium

He will gradually slow down to restore equilibrium

He must also change his speed to restore equilibrium (correct)

He will speed up to restore equilibrium

What is the primary function of methane (CH4) in the Sabatier process?

<p>As a fuel to make heat and light</p> Signup and view all the answers

At what temperature is the reaction conducted in the Sabatier process?

<p>1200K</p> Signup and view all the answers

Study Notes

Le Châtelier's Principle

The primary objective of Le Châtelier's principle is to describe how a system at equilibrium responds to changes in concentration, temperature, or pressure.

Sabatier Process

In the Sabatier process, adjusting the concentrations of reactants or products, temperature, or pressure allows the system to reach a new equilibrium state.
The primary function of methane (CH4) in the Sabatier process is to react with hydrogen to produce methanol.
The reaction is conducted at a high temperature, typically around 300-400°C.

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Description

Test your understanding of Le Châtelier's Principle and its application in predicting the effects of changes in concentration, volume, pressure, and temperature on chemical equilibrium in closed systems. This quiz will help you assess your knowledge of factors affecting chemical equilibrium in Grade 12A Chemistry.