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4 cards from this section. Quick, good the night before a test.
What is the Law of Mass Action?
Think about how the concentrations of products and reactants relate to each other at equilibrium.
Describe what Kc represents.
Remember how 'C' in Kc stands for concentrations.
What does Kc represent in a chemical reaction?
Think about what Kc stands for.
True or False: Kc is always constant regardless of temperature changes.
Consider how temperature influences chemical reactions.
A reaction's rate constant was measured at different temperatures, leading to a Kc of 25 at 300 K. If this reaction is exothermic, predict the Kc values at 350 K. Explain your reasoning.
Remember how heat influences reaction direction.
In a laboratory reaction, an experiment shows that at equilibrium, [A] = 0.3 M, [B] = 0.4 M, and [C] = 0.5 M for the reaction A + B ⇌ C. Calculate Kc for this reaction and interpret its significance.
Consider how you derive Kc from the equilibrium concentrations.
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