Q: Suppose the rate law for a particular reaction between nitrogen dioxide and c
ID: 888242 • Letter: Q
Question
Q: Suppose the rate law for a particular reaction between nitrogen dioxide and chlorine is Rate = k [NO2]2[Cl2]. How would each of the following affect the rate of the reaction?
a. If the concentration of NO2 is doubled then the reaction rate would ________________________ by a factor of ____________.
b. The concentration of NO2 and Cl2 are both tripled, then the reaction rate would ________________________ by a factor of ____________.
c. The concentration of Cl2 is halved, then the reaction rate would _____________________ by a factor of ____________.
Explanation / Answer
Given:
Rete law:
Rate = k[NO2]2 [Cl2]
a). Order with respect to NO2 is 2. That means when concentration doubles then reaction order increases by factor 4 .
for example initial order is 1
and initial concentration is 1
1 = 12
If concentration becomes doubles then rate
22= 4
so rate increase by factor 4.
b).
Since overall order of the reaction 3 ( 2 (NO2) and 1 (Cl2))
When concentrations becomes triple then order increases by factor 9.
33 = 9
c).
Order with respect to Cl2 is 1st so when its concentration becomes half then order also halved.
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