WorksheetsKinetics
Total questions: 12
Worksheet time: 28mins
Which of these factors increase the rate of a reaction?
increasing temperature
increasing concentration
adding a catalyst
All of these
Under the collision theory, the particles must collide with ____ and ____ for a reaction to occur.
sufficient rate and sufficient energy
sufficient surface area and the correct orientation
sufficient catalyst and sufficient energy
sufficent energy and the correct orientation
Given the following balanced equation :
2NO(g) + Cl2(g) → 2NOCl(g)
If the rate of disappearance of Cl2 is 4.84 x 10-2 M/s, what is the rate of disappearance of NO?
1.45 x 10-2 M/s
2.42 x 10-2 M/s
4.84 x 10-2 M/s
9.68 x 10-2 M/s
Given the reaction: 2 A + B --> 3 C,
if the rate of formation of C is 12 M/s, what is the rate of reaction?
4 M/s
12 M/s
6 M/s
36 M/s
Given the following rate law,
rate = k[A]2[B]
if [A] were doubled, what must happen to [B] to maintain the same rate of reaction?
[B] must quadruple
[B] must double
[B] must be cut in half
[B] must decrease by a factor of 4
The following data were measured for a reaction where BF3 and NH3 are reactants.
What is the rate law for the reaction?
rate = k[NH3]
rate = k[BF3]2[NH3]
rate =
k[BF3][NH3]
rate =
k[BF3][NH3]2
The decomposition of compound A is a first-order process. The rate constant for this reaction is 0.030 min-1 at 100oC . Calculate the half-life of A.
1.5 min
8.3 min
23 min
67 min
A reaction has the following rate law: rate = k[A]
The rate constant is 0.50 M-1s-1. If the initial concentration of A is 0.10 M, how long will it take for [A] to drop to 0.025 M?
0.70 s
1.4 s
2.8 s
5.6 s
In a second-order reaction, the initial concentration of reactant A is 0.24 M. If the rate constant is 8.1 x 10-2 M-1 s-1, what is the concentration of A after 29 seconds?
0.023 M
0.15 M
0.30 M
6.5 M
This is a proposed mechanism for the decomposition of ozone:
step 1: O3 → O2 + O
step 2: O3 + O → 2 O2
The oxygen atom (O) is considered to be a(n) _____?
intermediate
What is the enthalpy change for the reaction (ΔH)?
-40 kJ
-20 kJ
80 kJ
60 kJ
20 kJ
What is the activation energy for this energy profile curve?
150 kJ
250 kJ
50 kJ
200 kJ
