Test Your Chemistry Knowledge Now
(225).jpg "Test Your Chemistry Knowledge Now")
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- 1.Select the factors that affect the reaction rate:
- A.
Physical state reactants
- B.
Presence of a catalyst
- C.
Reactant concentration
- D.
All of the above
- 2.
![The rate of the appearance of NO2=6 molar/sec what is the rate of appearance of O2? - ProProfs]( "The rate of the appearance of NO2=6 molar/sec what is the rate of appearance of O2?")
The rate of the appearance of NO2=6 molar/sec what is the rate of appearance of O2?- A.
1/2
- B.
-1/2
- C.
24
- D.
-24
- 3.
![Rate of appearance of NO2=6molar/sec, what is the rate of disappearance of N2O5 - ProProfs]( "Rate of appearance of NO2=6molar/sec, what is the rate of disappearance of N2O5")
Rate of appearance of NO2=6molar/sec, what is the rate of disappearance of N2O5- A.
-3
- B.
3
- C.
12
- D.
-12
- 4.
![If you have the equation below determine the relationship between the disappearance ofN2O5 and the appearance of O2 - ProProfs]( "If you have the equation below determine the relationship between the disappearance ofN2O5 and the appearance of O2")
If you have the equation below determine the relationship between the disappearance ofN2O5 and the appearance of O2- A.
-1/2(N2O5/t)=O2/t
- B.
1/2(N2O5/t)=-O2/t
- C.
(N2O5/t)=-1/2(O2/t)
- D.
(N2O5/t)=O2/t
- 5.Rate=k[A]^x[B]^y If X=1 and Y=2 what is the overall order of the reaction?
- A.
2
- B.
3
- C.
1
- D.
Non of the above
- 6.
![If you have the following data:
identify the order of y? - ProProfs]( "If you have the following data:
identify the order of y?")
If you have the following data: identify the order of y?- A.
2
- B.
1
- C.
3
- D.
Non of the above
- 7.If k[3A]^x and the rate law is 27k[A]^x what is the order of x?
- A.
1
- B.
3
- C.
2
- D.
0
- 8.
![Calculate the rate constant of this reaction: - ProProfs]( "Calculate the rate constant of this reaction:")
Calculate the rate constant of this reaction:- A.
1.2*10^4 M^-1.s^-2
- B.
1.2*10^4 M^-2.s^-1
- C.
2.4*10^4 M^-1.s^-2
- D.
2.4*10^4 M^-2.s^-1
- 9.
![What is the rate of the reaction when [No]=0.15M and [Br2]= 0.25M
hints:
you need to find x and y first.
k=1.2*10^4 M^-2.s^-1 - ProProfs]( "What is the rate of the reaction when [No]=0.15M and [Br2]= 0.25M
hints:
you need to find x and y first.
k=1.2*10^4 M^-2.s^-1")
What is the rate of the reaction when [No]=0.15M and [Br2]= 0.25M hints: you need to find x and y first. k=1.2*10^4 M^-2.s^-1- A.
67.5M.s^-1
- B.
67.5M.s
- C.
64.5M.s^-1
- D.
64.5M^-1.s
- 10.Which of the following equations is a first order equation?
- A.
1/[A]t=kt+1/[A]0
- B.
[A]t=-kt+[A]0
- C.
[A]t=kt-[A]0
- D.
Ln[A]t=-kt+ln[A]0
- 11.The reaction 2A=B has a rate constant of 2.8*10^-2 s^-1 at 80c, How long will it take for A to decrease from 0.88M to 0.14M. Fine the order of A
- A.
66s , 1st order
- B.
66s ,0th order
- C.
65.8s , 2nd order
- D.
100s, 1st order
- 12.The higher the activation energy is the slower the reaction gets.
- A.
True
- B.
False
- 13.What is the relationship between the rate and each of the following depending on Arrhenius equation: 1)T 2)A 3)Ea
- A.
1)increases 2)increases 3)decrease
- B.
1)increases 2)decrease 3)decrease
- C.
1)increases 2)increases 3)increase
- D.
1)decreases 2)increases 3)decrease
![What is the rate of the reaction when [No]=0.15M and [Br2]= 0.25M
hints:
you need to find x and y first.
k=1.2*10^4 M^-2.s^-1 - ProProfs](https://media.proprofs.com/images/QM/user_images/2398945/1610058830.jpeg "What is the rate of the reaction when [No]=0.15M and [Br2]= 0.25M
hints:
you need to find x and y first.
k=1.2*10^4 M^-2.s^-1")
Questions: 10 | Attempts: 45562 | Last updated: Aug 26, 2021
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