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2 cards from this section. Quick, good the night before a test.
What is the rate law?
Think about how changes in concentration affect reaction rates.
What does 'k' represent in the rate law?
It's a fixed value for each reaction.
What does the rate law express?
Focus on what influences reaction speed.
True or False: A second-order reaction's rate is proportional to the concentration squared.
Consider how changes in concentration would affect the rate.
For a reaction with a rate law of Rate = k ⋅ [X]^2 ⋅ [Y]^1, if [X] is increased by a factor of 3 and [Y] is decreased by a factor of 2, what will be the overall effect on the reaction rate?
Consider how both concentration changes interact with respect to the rate law.
If it is determined that the order of a reaction with respect to a reactant A is 3, calculate the effect on the rate if [A] is halved.
Remember, the order of 3 means you raise the halved concentration to the power of 3.
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