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The data below was obtained for a reaction that was found to be first order. In...
D. The data below is for the reaction sequence A- Elementary step A, H/kJ mol A-...
D. The data below is for the reaction sequence A- Elementary step A, H/kJ mol A- B B- C C D B- C- E /kJ mol Hint: Use the data to prepare a graph of the reaction profile and then answer the questions below. Your graph should be properly labelled and drawn to scale. Potential Energy Reaction progress (a) Whichof the following steps has the smallest rate constant? AB Bc (b) Which of the following steps has the largest rate...
ause the reaction is first order wiurTo stant, k, by plotting a graph of In Absorbance...
ause the reaction is first order wiurTo stant, k, by plotting a graph of In Absorbance vs. time. hoose New Calculated Column from the Data menu. nter "In Absorbance" as the Name, and leave the unit blank. nter the correct formula for the column into the Equation edit e Function list, and selecting "Absorbance" from the Variables list c lick on the y-axis label. Choose In Absorbance. A graph of In absorhan ow be displayed. Change the scale of the...
The activation energy for a particular reaction is 102 kJ/mol. If the rate constant is 35...
The activation energy for a particular reaction is 102 kJ/mol. If the rate constant is 35 × 10⁻⁴ s⁻¹ at 322 K, what is the rate constant at 273 K? An experimental plot of ln(k) vs. 1/T is obtained in lab for a reaction. The slope of the best-fit line for the graph is -3090 K. What is the value of the activation energy for the reaction in kJ/mol?
An experimental plot of In(k) vs. 1/T is obtained in lab for a reaction. The slope...
An experimental plot of In(k) vs. 1/T is obtained in lab for a reaction. The slope of the best-fit line for the graph is -3880 K. What is the value of the activation energy for the reaction in kJ/mol? The reaction A + 2B + C Products has a rate law of Rate = k[A]][B]. By what factor would the reaction rate change if [B] is tripled? What is the rate for the second order reaction A - Products when...
1) Calculate the activation energy in kJ/mol for the following reaction if the rate constant for...
1) Calculate the activation energy in kJ/mol for the following reaction if the rate constant for the reaction increases from 93.5 M-1s-1 at 497.7 K to 1349.3 M-1s-1 at 636.7 K. do not include units, but make sure your answer is in kJ/mol! 2) A chemist constructs a plot of ln k vs. 1/T for a chemical reaction. The slope of the trendline for the data is -746 K. What is the activation energy for this reaction in kJ/mol? R...
Question 24 (1 point) The graph below shows the results of an Arrhenius plot for the...
Question 24 (1 point) The graph below shows the results of an Arrhenius plot for the reaction 2 N2O(g) --> 4 NO2(g) + O2(g) In(k) vs. 1/1 In(k) (k in units of s.1) slope-1.24x104 K intercept=315 -14 0.0026 0.0028 0.003 0.0032 0.0034 Т (1/к) Which of the following most correctly describes the activation energy and frequency factor for this reaction? Ea-1.03x102 kJ mol 1 A-3.30x1031 - 1 Ea=-1.24x104 kJ mol-1, A=31.5 s -1 O Ea-1.03x108 kJ mol-1 A-4.79x1013 5-1 Ea=1.03x102...
Name Wkst #16 CHEM& 162 1. Consider the following proposed reaction mechanism. 12 = 21 1...
Name Wkst #16 CHEM& 162 1. Consider the following proposed reaction mechanism. 12 = 21 1 + O₂ → 10₂ + 0 0+ 03 - 202 1 +10, -12 + O2 A. What is the overall reaction? B. What are the intermediates and catalysts? Intermediates: Catalysts: C. If the first step is in equilibrium and the second step is slow. what is the overall rate law? Remember, intermediates cannot appear in the final rate law! Rate = D. On the...
21. A reaction proceeds by a series of elementary steps as shown below. The activation energy...
21. A reaction proceeds by a series of elementary steps as shown below. The activation energy and heat of reaction are shown for each step. Step No. Elementary step Activation energy Enthalpy of reaction A + B2 → AB, 4 kJ/mol -10 kJ/mol 2 AB2+ C → ABC + BC 30 kJ/mol +5.2 kJ/mol 3 ABC + B2 → AB + BC 10 kJ/mol -7.8 kJ/mol a) What is the overall equation for this reaction? (1 mark) b) What is...
Ildilen Hub The reaction S2082 + 3 + 25042 + 13 is first order in both...
Ildilen Hub The reaction S2082 + 3 + 25042 + 13 is first order in both reactants. The following mechanism is proposed; r + S2082- + 152083- 152093- + 25042 + It it + 1 - 2 12 + 1 + 13 a) Which step is the rate determining step? Why? b) Which step would have an activation energy of 0 kj/mole? c) Why would you expect this reaction to not occur in a single elementary rate step?
. (a) If a first-order reaction has an activation energy of 104.6 kJ/mol and, in the...
. (a) If a first-order reaction has an activation energy of 104.6 kJ/mol and, in the equation k = k0 exp (-Ea/RT), k0 has a value of 5×1013/s, at what temperature will the reaction have a half-life of (i) 1 h; (ii) 1 day? [Note: the value of R is 8.314 kJ/kmol·K.] (b) If the sterilization of a biomaterial was heating at 121°C for 5 min, it could only be heated at 111°C due to the failure of the heating...
D. The data below is for the reaction sequence A- Elementary step A, H/kJ mol A- B B- C C D B- C- E /kJ mol Hint: Use the data to prepare a graph of the reaction profile and then answer the questions below. Your graph should be properly labelled and drawn to scale. Potential Energy Reaction progress (a) Whichof the following steps has the smallest rate constant? AB Bc (b) Which of the following steps has the largest rate...
ause the reaction is first order wiurTo stant, k, by plotting a graph of In Absorbance vs. time. hoose New Calculated Column from the Data menu. nter "In Absorbance" as the Name, and leave the unit blank. nter the correct formula for the column into the Equation edit e Function list, and selecting "Absorbance" from the Variables list c lick on the y-axis label. Choose In Absorbance. A graph of In absorhan ow be displayed. Change the scale of the...
An experimental plot of In(k) vs. 1/T is obtained in lab for a reaction. The slope of the best-fit line for the graph is -3880 K. What is the value of the activation energy for the reaction in kJ/mol? The reaction A + 2B + C Products has a rate law of Rate = k[A]][B]. By what factor would the reaction rate change if [B] is tripled? What is the rate for the second order reaction A - Products when...
Question 24 (1 point) The graph below shows the results of an Arrhenius plot for the reaction 2 N2O(g) --> 4 NO2(g) + O2(g) In(k) vs. 1/1 In(k) (k in units of s.1) slope-1.24x104 K intercept=315 -14 0.0026 0.0028 0.003 0.0032 0.0034 Т (1/к) Which of the following most correctly describes the activation energy and frequency factor for this reaction? Ea-1.03x102 kJ mol 1 A-3.30x1031 - 1 Ea=-1.24x104 kJ mol-1, A=31.5 s -1 O Ea-1.03x108 kJ mol-1 A-4.79x1013 5-1 Ea=1.03x102...
Name Wkst #16 CHEM& 162 1. Consider the following proposed reaction mechanism. 12 = 21 1 + O₂ → 10₂ + 0 0+ 03 - 202 1 +10, -12 + O2 A. What is the overall reaction? B. What are the intermediates and catalysts? Intermediates: Catalysts: C. If the first step is in equilibrium and the second step is slow. what is the overall rate law? Remember, intermediates cannot appear in the final rate law! Rate = D. On the...
21. A reaction proceeds by a series of elementary steps as shown below. The activation energy and heat of reaction are shown for each step. Step No. Elementary step Activation energy Enthalpy of reaction A + B2 → AB, 4 kJ/mol -10 kJ/mol 2 AB2+ C → ABC + BC 30 kJ/mol +5.2 kJ/mol 3 ABC + B2 → AB + BC 10 kJ/mol -7.8 kJ/mol a) What is the overall equation for this reaction? (1 mark) b) What is...
Ildilen Hub The reaction S2082 + 3 + 25042 + 13 is first order in both reactants. The following mechanism is proposed; r + S2082- + 152083- 152093- + 25042 + It it + 1 - 2 12 + 1 + 13 a) Which step is the rate determining step? Why? b) Which step would have an activation energy of 0 kj/mole? c) Why would you expect this reaction to not occur in a single elementary rate step?
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