What is Le Chatelier's Principle?

Chemical Equilibrium Factors

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Others
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University
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Hard
Tigabu Awraris
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Le Chatelier's Principle is used to predict the future of a system at equilibrium.
Le Chatelier's Principle only applies to chemical reactions involving gases.
Le Chatelier's Principle states that equilibrium is always reached in a closed system.
Le Chatelier's Principle describes how systems at equilibrium respond to external changes.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does temperature affect chemical equilibrium?
Temperature decreases the concentration of reactants at equilibrium
Temperature has no effect on chemical equilibrium
Temperature affects chemical equilibrium by changing the equilibrium constant.
Temperature increases the rate of reaction at equilibrium
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the effect of pressure on equilibrium.
Pressure affects equilibrium by shifting it towards the side with fewer gas molecules to reduce the pressure.
Pressure has no effect on equilibrium
Pressure increases the rate of reaction at equilibrium
Pressure causes equilibrium to shift towards the side with more gas molecules
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discuss the influence of concentration on equilibrium.
Le Chatelier's Principle explains that if the concentration of reactants or products is increased, the equilibrium will shift to consume the added substance and establish a new equilibrium position.
Equilibrium is only influenced by temperature, not concentration.
Concentration has no impact on equilibrium.
Increasing concentration leads to a decrease in the equilibrium constant.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What role does a catalyst play in chemical equilibrium?
Speeds up the attainment of equilibrium by lowering activation energy
Delays the attainment of equilibrium by increasing activation energy
Causes a shift in equilibrium towards the reactants
Has no effect on the attainment of equilibrium
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do changes in volume impact equilibrium?
Changes in volume have no impact on equilibrium
Changes in volume always shift equilibrium to the left
Changes in volume only impact equilibrium for solid-phase reactions
Changes in volume can shift the equilibrium position of a reaction to favor the side with fewer moles of gas when the volume decreases and to favor the side with more moles of gas when the volume increases.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe the effect of adding or removing a reactant on equilibrium.
Adding a reactant has no effect on equilibrium
Removing a reactant shifts equilibrium towards products
Adding a reactant shifts equilibrium towards products; removing a reactant shifts equilibrium towards reactants.
Adding a reactant shifts equilibrium towards reactants
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