Homework Answers
Take Temperatures T1= 575 K ; T2 = 625 K
![Arrhenius equation to calculate the activation energy is In (K2 /K1) = (Ea/R) [1/T1 - 1/T2], Assume, Rate constant K1 = 2.91E](http://img.homeworklib.com/questions/34320150-7285-11ea-8805-515a4a3593c6.png?x-oss-process=image/resize,w_560)
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8. (8 marks) Use the following data to determine the activation energy and the pre- exponential...
From the data below for the reaction B + CD Find the values of the pre-exponential...
From the data below for the reaction B + CD Find the values of the pre-exponential constant (A), activation energy (E), and the reaction orders a and y for a rate expression with the form: Rate = kPPS Here k = Aexp(-5). Report a and y to one significant figure. Include any plots or analysis you use to develop the expression. Assume conversion is less than 2% for all measured rates. Rate (umol D/s/gcat) PC (atm) atm 33 47 78...
Question #5 Here are the relevant data to determine the activation energy of the reaction. Rate...
Question #5 Here are the relevant data to determine the activation energy of the reaction. Rate constant (units not shown) Temperature (K) .13 293 0.11 308 Use the data above to determine the activation energy of the reaction? 83 kJ/mol Submit This value is not correct. Please check your calculations and try again. Question #6 Here are your data for trial of Lab 7 (the trial at room temperature without the catalyst): [103 initial (S203 initial Initial Rate .0023 M...
Physical Chemisty Question* #9 *integrate if possible *Show work please 9. Use the data in the...
Physical Chemisty Question* #9
*integrate if possible
*Show work please
9. Use the data in the table below to calculate the activation energy and the value of the pre-exponential factor. Experiment 2 3 4 Temperature in Kelvin Rate constant (L/mol s) 1125 1053 11.59 1.67 0.380 0.0011 1001 838
Temperature (°C) 4. (12) Use the following data to determine the activation energy in kJ/mol for...
Temperature (°C) 4. (12) Use the following data to determine the activation energy in kJ/mol for a first order reaction. Sketch a rough copy of the graph 300 (with labeled axes) used to determine the 320 energy. 340 Rate constant (s:') 3.2x10-11 1.0x109 3.0x108 2.4x107 67 E =
question 5,6 part 1 and 2 please Question #5 Here are the relevant data to determine the activation energy of the...
question 5,6 part 1 and 2 please
Question #5 Here are the relevant data to determine the activation energy of the reaction. Rate constant (units not shown) Temperature (K) .13 293 0.11 308 Use the data above to determine the activation energy of the reaction. -3628 kl/mol Submit Please enter your results to the correct precision. Question #6 Here are your data for trial of Lab 7 (the trial at room temperature without the catalyst): [103 initial (S2032 Jinitial Initial...
QUESTION 58 - WRITE YOUR ANSWER IN THE SPACE PROVIDED [5 marks Dichromate, Cr207 in acidic...
QUESTION 58 - WRITE YOUR ANSWER IN THE SPACE PROVIDED [5 marks Dichromate, Cr207 in acidic solution requires 6e to produce Cr(aq) and water. The electrons can come from the oxidation of Fe (aq) to Fe + (aq). a. Write balanced half reactions for these two reactions. [3 marks] b. Combine them to obtain an overall balanced equation for reduction of dichromate by Fe(aq). [2 marks] QUESTION 59-WRITE YOUR ANSWER IN THE SPACE PROVIDED 1 5 marks The activation energy...
Given the following data for the following hypothetical reaction, determine the activation energy. You may upload...
Given the following data for the following hypothetical reaction, determine the activation energy. You may upload a graph. ered 2.00 Experiment Temperature (°C) tion 10 Rate Constant k (M/s) 1.53 x 10-6 6.14 x 10-6 1.48 x 10-5 4.15 x 10-5 1.21 x 10-4 20 30 40 50 EP U S x x 44 B I AD 3 3 va 12 T ©
1. Calculate the activation energy, Ea, in kilojoules per mole for a reaction at 73.0 ∘C...
1. Calculate the activation energy, Ea, in kilojoules per mole for a reaction at 73.0 ∘C that has a rate constant of 0.278 s−1 and a frequency factor of 9.74×1011 s−1. Ea= kJ/mol 2. Nitogen dioxide, NO2, is a red-brown gas that is considered an air pollutant. When heated, nitogen dioxide gas decomposes into nitrogen monoxide and oxygen gas, according to the following reaction. 2NO2(g)−⇀↽−2NO(g)+O2(g) A sample of nitrogen dioxide in a sealed vessel was heated to 575 K, and...
3. A student obtained the following data for the hydrolysis of an organic ester: Rate, k,...
3. A student obtained the following data for the hydrolysis of an organic ester: Rate, k, Expt. [Esterl Ho] TK mol/Ls Vmol-s 1 0.100 0.200 288 1.04 x10 0.0521 2 0.100 0.200 298 2.02 x 10 0.101 3 0.100 0.200 308 3.68 x 10' 0.184 4 0.100 0.200 318 6.64x 10' 0.332 1 0.100 a. Prepare a plot of the rate constant as a function of temperature (attach plot); b. Prepare an Arrhenius plot, In k as a function of...
4. You are carrying out an experiment on the elementary first-order decomposition reaction A B. The...
4. You are carrying out an experiment on the elementary first-order decomposition reaction A B. The following data were obtained k, [s1 1.121e-8 5.212e-7 1.401e-5 2.427e-4 0.0029 k, [s1 0.390 2.686 14.042 58.883 206.410 Run Temp [oC] 27 52 2 4 102 127 a) Determine the pre-exponential factor and activation energy for each reaction (forward and backward) b) A co-worker tells you that this reaction is exothermic. Do you agree? c) Is the species A stable at room temperature? At...
From the data below for the reaction B + CD Find the values of the pre-exponential constant (A), activation energy (E), and the reaction orders a and y for a rate expression with the form: Rate = kPPS Here k = Aexp(-5). Report a and y to one significant figure. Include any plots or analysis you use to develop the expression. Assume conversion is less than 2% for all measured rates. Rate (umol D/s/gcat) PC (atm) atm 33 47 78...
Question #5 Here are the relevant data to determine the activation energy of the reaction. Rate constant (units not shown) Temperature (K) .13 293 0.11 308 Use the data above to determine the activation energy of the reaction? 83 kJ/mol Submit This value is not correct. Please check your calculations and try again. Question #6 Here are your data for trial of Lab 7 (the trial at room temperature without the catalyst): [103 initial (S203 initial Initial Rate .0023 M...
Physical Chemisty Question* #9
*integrate if possible
*Show work please
9. Use the data in the table below to calculate the activation energy and the value of the pre-exponential factor. Experiment 2 3 4 Temperature in Kelvin Rate constant (L/mol s) 1125 1053 11.59 1.67 0.380 0.0011 1001 838
Temperature (°C) 4. (12) Use the following data to determine the activation energy in kJ/mol for a first order reaction. Sketch a rough copy of the graph 300 (with labeled axes) used to determine the 320 energy. 340 Rate constant (s:') 3.2x10-11 1.0x109 3.0x108 2.4x107 67 E =
question 5,6 part 1 and 2 please
Question #5 Here are the relevant data to determine the activation energy of the reaction. Rate constant (units not shown) Temperature (K) .13 293 0.11 308 Use the data above to determine the activation energy of the reaction. -3628 kl/mol Submit Please enter your results to the correct precision. Question #6 Here are your data for trial of Lab 7 (the trial at room temperature without the catalyst): [103 initial (S2032 Jinitial Initial...
QUESTION 58 - WRITE YOUR ANSWER IN THE SPACE PROVIDED [5 marks Dichromate, Cr207 in acidic solution requires 6e to produce Cr(aq) and water. The electrons can come from the oxidation of Fe (aq) to Fe + (aq). a. Write balanced half reactions for these two reactions. [3 marks] b. Combine them to obtain an overall balanced equation for reduction of dichromate by Fe(aq). [2 marks] QUESTION 59-WRITE YOUR ANSWER IN THE SPACE PROVIDED 1 5 marks The activation energy...
Given the following data for the following hypothetical reaction, determine the activation energy. You may upload a graph. ered 2.00 Experiment Temperature (°C) tion 10 Rate Constant k (M/s) 1.53 x 10-6 6.14 x 10-6 1.48 x 10-5 4.15 x 10-5 1.21 x 10-4 20 30 40 50 EP U S x x 44 B I AD 3 3 va 12 T ©
3. A student obtained the following data for the hydrolysis of an organic ester: Rate, k, Expt. [Esterl Ho] TK mol/Ls Vmol-s 1 0.100 0.200 288 1.04 x10 0.0521 2 0.100 0.200 298 2.02 x 10 0.101 3 0.100 0.200 308 3.68 x 10' 0.184 4 0.100 0.200 318 6.64x 10' 0.332 1 0.100 a. Prepare a plot of the rate constant as a function of temperature (attach plot); b. Prepare an Arrhenius plot, In k as a function of...
4. You are carrying out an experiment on the elementary first-order decomposition reaction A B. The following data were obtained k, [s1 1.121e-8 5.212e-7 1.401e-5 2.427e-4 0.0029 k, [s1 0.390 2.686 14.042 58.883 206.410 Run Temp [oC] 27 52 2 4 102 127 a) Determine the pre-exponential factor and activation energy for each reaction (forward and backward) b) A co-worker tells you that this reaction is exothermic. Do you agree? c) Is the species A stable at room temperature? At...
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