5.3.1.4 - Deduce the order for each reactant
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Practice Questions
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What does it mean if a reaction is zero order with respect to a reactant?
💡 Hint: Think of how the concentration affects the rate.
If doubling the concentration of a reactant doubles the rate, what order is it?
💡 Hint: Consider how directly proportional relationships work.
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Interactive Quizzes
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If the reaction rate remains unchanged when a reactant concentration is doubled, what is the order of the reaction with respect to that reactant?
💡 Hint: Consider how concentration influences rate in different orders.
True or False: A reaction that is second order with respect to reactant A will increase its rate by a factor of four if its concentration is doubled.
💡 Hint: Reflect on how second-order reactions operate.
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Challenge Problems
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You conduct an experiment and find that when you double the concentration of reactant X, the reaction rate becomes four times faster. If you then double the concentration of a second reactant Y while keeping X constant, and the rate increases by a factor of eight, what are the orders of the reaction with respect to X and Y?
💡 Hint: Analyze how the rate changes according to each reaction when you manipulate their concentrations.
In a chemical reaction with multiple steps, you find that the rate law is Rate = k [A]^m [B]^n, but you only have data for [A]. If doubling [A] leads to quadrupling the reaction rate, while all other conditions remain constant, determine the value of m.
💡 Hint: Recall the relationship between concentration changes and how they affect the rate of reaction.
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