Reference no: EM13836132
Problem 1: The experimentally determined rate law for the following reaction indicates that the reaction is second-order in AB and that the reaction is second-order overall.
AB + C → A + BC
a. Write the rate law for the reaction.
b. Is the following mechanism valid for this reaction? Provide TWO (2) reasons for your answer.
AB + AB → AB2 + A slow
AB2 + C → AB + BC fast
c. When the temperature is increased from 25°C to 50°C, the reaction rate increases 1.65 times. What is the activation energy of the reaction?
d. Sketch the graph for the integrated rate law with respect to the concentration of AB.
Problem 2: For the reaction: 2A + B + 2C → D + E, the following initial rate data was collected at constant temperature.
|
Trial
|
[A]/M [B]/M
|
[C]/M
|
Rate/Ms-1
|
|
1
|
0.225
|
0.150
|
0.350
|
0.0217
|
|
2
|
0.320
|
0.150
|
0.350
|
0.0439
|
|
3
|
0.225
|
0.250
|
0.350
|
0.0362
|
|
4
|
0.225
|
0.150
|
0.600
|
0.01270
|
a. Determine the correct rate law for this reaction.
b. Calculate the rate constant, k.
c. Determine the reaction rate for A.
Problem 3: The data shown below were obtained from the following reaction: 2 NO(g) + 2 H2(g) → N2(g) + 2 H2O(g)
|
Exp
|
[NO]0 (M)
|
[H2]0(M)
|
Initial Rate of Reaction (M/min)
|
|
1
|
0.0080
|
0.0060
|
4.3 10-4
|
|
2
|
0.0080
|
0.0120
|
8.6 10-4
|
|
3
|
0.0030
|
0.0080
|
8.0 10-5
|
|
4
|
0.0060
|
0.0080
|
3.2 10-4
|
a. Write the rate law for the reaction.
b. Calculate the value of the rate constant, k, for the reaction.
c. For experiment 2, calculate the concentration of NO remaining when exactly half of the original amount of H2 has been consumed.
Problem 4: Iodine and propanone react in acid solution according to the following equation:
I2(aq) = CH3COCH3(aq) →H+ CH3COCH2I(aq) + HI(aq)
The experimentally determined rate law for this reaction indicates that the reaction is first-order in CH3COCH3 and first-order in H+. The reaction is second-order overall. At 50°C, the reaction rate is 2.00×10-5 M/s when the concentration of CH3COCH3, I2and H+ is1.50 M, 2.0x10-2 M and 3.0x10-2 M, respectively.
a. Calculate the rate constant at 50°C.
b. Calculate the rate of formation of CH3COCH2I when [I2]= [ CH3COCH3]= [H+]= 2.00 M.
c. When the temperature is increased to 100°C, the reaction rate increases 1.5 times. What is the activation energy of the reaction?
d. What is the role of H+ in this reaction?
Problem 5: Gas phase dissociation reaction, A(g) → B(g) + C(g) was monitored at 300oC in terms of the decrease in the concentration of A with time as shown in TABLE
TABLE: Kinetics of Gas Phase Dissociation of A
|
Time (s)
|
[A] (M)
|
|
0
|
0.01000
|
|
100
|
0.00649
|
|
200
|
0.00481
|
|
300
|
0.00380
|
|
|
|
a. Determine the average rate of disappearance of A at 100 s.
b. Determine the reaction order by plotting the suitable graph(s) using data from TABLE
c. Write the rate law and determine the rate constant.
d. If at 400oC the rate constant increased to 40.2 M-1 s-1, calculate the activation energy for the reaction.
|
Write a java application that allows the user to read
: Write a java application that allows the user to read, validate, store, display, sort and search the internet account number (integer number), usage (integer number) and cost (double number) for N customers. N should be declared as a constant and it ..
|
|
Which rate of withholding tax will apply
: Which rate of withholding tax will apply to the dividends distributed to Saudi Arabia? (Please, indicate the article of the OECD Tax Model convention to which you refer to justify your answer)
|
|
How might this relate to medicalization of women sexuality
: Despite the accessibility of vibrators and other sex toys, open discussion of women's orgasms and sexual pleasure is rare. Why might this still be the case? How might this relate to the medicalization of women's sexuality, as discussed in this uni..
|
|
Study the criminal activities of gang member
: Identify at least three relevant ethical concerns with this study - How would these concerns shape your research project and Create two separate paragraphs.
|
|
Experimentally determined rate law
: Problem 1: The experimentally determined rate law for the following reaction indicates that the reaction is second-order in AB and that the reaction is second-order overall.
|
|
Disease process and discuss the disease process
: Review Healthy People 2020 Global Health Initiatives. Choose one disease process and discuss the disease process, the goal of Healthy People 2020, and how the CDC plays a role in meeting the goal.
|
|
Identify at least three relevant ethical concerns
: Identify at least 3 relevant ethical concerns with this study - How would these concerns shape your research project and Create two separate paragraphs.
|
|
Identification of opportunities and threats
: Reflective Piece - Record and reflect on your development as a strategist over the course of the semester. Each individual is to write a reflective essay that demonstrates a significant personal insight into your development as a strategist
|
|
Develop a tool that helps companies in assessing
: Develop a tool that helps companies in assessing the suitability of different operating systems for their businesses. This tool is a table with multiple rows and columns. Table 1 is a simple and incomplete example of this table. Your table should hav..
|