Equilibrium Flashcard- AP Chemistry
Flashcard
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the equilibrium expression for a reaction?
Back
The equilibrium expression is a mathematical representation of the ratio of the concentrations of products to reactants at equilibrium, each raised to the power of their coefficients in the balanced equation.
2.
FLASHCARD QUESTION
Front
What does Kc represent in chemical equilibrium?
Back
Kc is the equilibrium constant that quantifies the ratio of the concentrations of products to reactants at equilibrium for a reversible reaction.
3.
FLASHCARD QUESTION
Front
How do you write the equilibrium expression for the reaction: 2H2O2(aq) ↔ 2H2O (l) + O2(g)?
Back
Kc = [O2] / [H2O2]2.
4.
FLASHCARD QUESTION
Front
What does it mean if Kc is much greater than 1?
Back
If Kc is much greater than 1, it indicates that at equilibrium, the concentration of products is much greater than that of reactants, favoring the formation of products.
5.
FLASHCARD QUESTION
Front
What does it mean if Kc is much less than 1?
Back
If Kc is much less than 1, it indicates that at equilibrium, the concentration of reactants is much greater than that of products, favoring the formation of reactants.
6.
FLASHCARD QUESTION
Front
What is the significance of a reaction reaching equilibrium?
Back
Equilibrium is reached when the rates of the forward and reverse reactions are equal, resulting in constant concentrations of reactants and products.
7.
FLASHCARD QUESTION
Front
What is the role of temperature in chemical equilibrium?
Back
Temperature changes can shift the position of equilibrium according to Le Chatelier's principle, affecting the concentrations of reactants and products.
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