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What are the units for the rate constant (k) of a reaction with the rate law: rate = k[A][B]?
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15. Chemical Kinetics
Rate Law
Multiple Choice
Given the rate law: rate = k[a]^2[b], what is the reaction order with respect to a?
A
1
B
0
C
2
D
3
검증된 단계별 안내1
Identify the rate law given: \(\text{rate} = k[\text{a}]^{2}[\text{b}]\).
Recall that the reaction order with respect to a is the exponent of the concentration term [a] in the rate law.
Look at the exponent of [a] in the rate law, which is 2.
Therefore, the reaction order with respect to a is 2.
This means the rate depends on the concentration of a squared, indicating a second-order dependence on a.
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