What is the equilibrium constant (K_eq)?
Equilibrium Constants and Reactions

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Chemistry
•
12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The equilibrium constant (K_eq) is a numerical value that expresses the ratio of the concentrations of products to the concentrations of reactants at equilibrium for a reversible chemical reaction.
2.
FLASHCARD QUESTION
Front
How do you calculate K_eq for a reaction?
Back
K_eq = [products]^coefficients / [reactants]^coefficients, where the concentrations are at equilibrium.
3.
FLASHCARD QUESTION
Front
What does a large K_eq value indicate about a reaction?
Back
A large K_eq value (>>1) indicates that at equilibrium, the reaction favors the formation of products.
4.
FLASHCARD QUESTION
Front
What does a small K_eq value indicate about a reaction?
Back
A small K_eq value (<<1) indicates that at equilibrium, the reaction favors the formation of reactants.
5.
FLASHCARD QUESTION
Front
What is the difference between K_c and K_p?
Back
K_c is the equilibrium constant expressed in terms of molarity (concentration), while K_p is expressed in terms of partial pressures.
6.
FLASHCARD QUESTION
Front
How do you convert K_c to K_p?
Back
K_p = K_c(RT)^(Δn), where Δn is the change in moles of gas (moles of products - moles of reactants), R is the gas constant, and T is the temperature in Kelvin.
7.
FLASHCARD QUESTION
Front
What is the significance of the reaction quotient (Q)?
Back
The reaction quotient (Q) is a measure of the relative amounts of products and reactants at any point in time, used to predict the direction of the reaction.
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