AP Chem Kinetics - CISD AP Prep Conference

Consider the reaction X + Y ==> Z. Which rate law corresponds to a zero order reaction?

• Rate = k [Y]
• Rate = k [X]2[Y]
• Rate = k [X] [Y]2
• Rate = k [X]2
• Rate = k

Consider the reaction X + Y <==> Z. Which rate law corresponds to a reaction that is second order with respect to [Y]?

• Rate = k [Y]
• Rate = k [X]2[Y]
• Rate = k [X] [Y]2
• Rate = k [X]2
• Rate = k

Consider the reaction X + Y <==> Z. Which rate law corresponds to a reaction where tripling the concentration of X would lead to a tripling of the reaction rate?

• Rate = k [Y]
• Rate = k [X]2[Y]
• Rate = k [X] [Y]2
• Rate = k [X]2
• Rate = k

Consider the reaction X + Y <==> Z. Which rate law corresponds to reaction where halving the concentration of Y would lead to no change in the rate of the reaction?

• Rate = k [Y]
• Rate = k [X]2[Y]
• Rate = k [X] [Y]2
• Rate = k [X]2[Y]
• Rate = k [X]

Consider the reaction X + Y <==> Z. Which rate law corresponds to a reaction where doubling both the concentration of X and Y would lead to the rate increasing by a factor of 16?

• Rate = k [Y]
• Rate = k [X]2[Y]2
• Rate = k [X] [Y]2
• Rate = k [X]2
• Rate = k

Consider the following proposed mechanism for a reaction. STEP I: X + Y <==> A + Z STEP II: Z + X <==> D Given that the rate law for the reaction is found to be Rate = k[X][Y], which step in the mechanism is the slowest?

• Step I
• Step II
• Not enough data to tell
• A combination of Step I and Step II
• None of the above

In a reaction that is first order with respect to X and first order with respect to Y, which of the following changes will have NO effect overall on the rate?

• Doubling [X] and doubling [Y]
• Doubling [X]
• Quadrupling [Y]
• Halving [X] and doubling [Y]
• Halving [X] and halving [Y]