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Reaction coordination 7. For the reaction below, the rate law was found to be Rate =...
Some reaction has an activation energy of 44 kJ/mol and a rate constant of 4.0 ×...
Some reaction has an activation energy of 44 kJ/mol and a rate constant of 4.0 × 10₋4 s-1 at 37 oC. In the presence of a catalyst, the same reaction has an activation energy of 9.1 kJ/mol. Calculate the rate constant (s-1) of the catalyzed reaction at 37 oC. Enter your answer as an integer.
The activation energy of a certain uncatalyzed biochemical reaction is 46.7 kJ/mol. In the presence of...
The activation energy of a certain uncatalyzed biochemical reaction is 46.7 kJ/mol. In the presence of a catalyst at 39ºC, the rate constant for the reaction increases by a factor of 2030 as compared with the uncatalyzed reaction. Assuming the frequency factor A is the same for both the catalyzed and uncatalyzed reactions, calculate the activation energy for the catalyzed reaction. Activation energy = kJ/mol
A catalyst lowers the activation energy for a particular reaction from 75.0 kJ mol−1to 40.0 kJ...
A catalyst lowers the activation energy for a particular reaction from 75.0 kJ mol−1to 40.0 kJ mol−1. By what factor does the rate constant increase if the catalyst is used at 25.0 °C? Assume that all rate constants obey the Arrhenius equation and that the pre-exponential factors for the uncatalyzed and catalyzed reactions are equal
8. The rate law for the reaction H2O2 + 2H+212 + 2H2O is rate-k[H202][1]. The following...
8. The rate law for the reaction H2O2 + 2H+212 + 2H2O is rate-k[H202][1]. The following mechanism has been suggested. H2O2+1 - HOI + OH - slow OH + H H20 fast HỘI + H+ + + I2 + H2O fast Identify all intermediates included in this mechanism. A) H and I D) Honly B) H and HOI E) H20 and OH C) HOI and OH 9. Which of the following statements is false? A) A catalyst increases the rate...
At 300 K, the following reaction is found to obey the rate law of Rate =...
At 300 K, the following reaction is found to obey the rate law of Rate = k[NOCl]^2: 2 NOCl(g) 2 NO(g) + Cl2(g) The following reaction mechanism has been proposed for the reaction above: Proposed Mechanism: NOCl(g) ->NO(g) + Cl(g) slow Cl(g) + NOCl(g) -> NOCl(g) fast NOCl2(g) -> NO(g) + Cl2(g) fast 21. The suggested rate law in the mechanism is Rate = k[NOCl]. (T) 22. The reaction mechanism is plausible. (F) 23. NOCl2 is a catalyst in...
Question 28 For the reaction: 2Ad -- 4 d l the rate law is har et...
Question 28 For the reaction: 2Ad -- 4 d l the rate law is har et = K[A] Atence of 190Khan is 517 Kl/mol and the half-life is 125 10 seconds. Determine the rate constant 300K 5510-14-1 5.6 10' O2710 7.2910 5610 Question 28 For the reaction: 2 A(g) + 4B(g) + C(g) the rate law is: At = [a] At kJ/mol and the half-life is 1.25 x 104 seconds. Determine the rate constant at 300 K? 1 pts At...
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...
In Section 29-7, McQuarrie details the chain reaction between H2(g) and Br2(g). Consider the realted chain...
In Section 29-7, McQuarrie details the chain reaction between H2(g) and Br2(g). Consider the realted chain reaction H2(g) + Cl2(g) → 2HCl(g). The mechanism for this reaction is: Cl2(g) + Mg) = 2 Cl(g) +Mg) ki CI(g) + H2(g) → HCI(g) + H() k2 H(g) + Cl2(8) = HCI(g) + CI(8) k3 2Cl(g) + Mg) = Cl2(g) + Mg) ks (a) Use bond dissociation energies to explain why it is reasonable to exclude the analogous inhibition steps in this mechanism...
a) Given these data for the reaction , write the rate-law expression. (Use k for the...
a) Given these data for the reaction , write the rate-law expression. (Use k for the rate constant.) Rate = _______ The specific rate constant = ___________ Expt. Initial [A] (M) Initial [B] (M) Initial Rate of Formation of C () 1 0.15 0.40 4x10^-5 2 0.15 0.80 1.6x10^-4 3 0.30 1.6 1.3x10^-3 b) The rate of the elementary reaction C2H2 + H2->C2H4 has been studied as a function of temperature between 300 and 2500 K. The following data were...
The rate constant for the reaction below was determined to be 3.241×10-5 s–1 at 800 K....
The rate constant for the reaction below was determined to be 3.241×10-5 s–1 at 800 K. The activation energy of the reaction is 265 kJ/mol. What would be the value of the rate constant at 9.60×102 K? $$N2O(g) N2(g)+O(g) (explain all steps and including calculator)
8. The rate law for the reaction H2O2 + 2H+212 + 2H2O is rate-k[H202][1]. The following mechanism has been suggested. H2O2+1 - HOI + OH - slow OH + H H20 fast HỘI + H+ + + I2 + H2O fast Identify all intermediates included in this mechanism. A) H and I D) Honly B) H and HOI E) H20 and OH C) HOI and OH 9. Which of the following statements is false? A) A catalyst increases the rate...
Question 28 For the reaction: 2Ad -- 4 d l the rate law is har et = K[A] Atence of 190Khan is 517 Kl/mol and the half-life is 125 10 seconds. Determine the rate constant 300K 5510-14-1 5.6 10' O2710 7.2910 5610 Question 28 For the reaction: 2 A(g) + 4B(g) + C(g) the rate law is: At = [a] At kJ/mol and the half-life is 1.25 x 104 seconds. Determine the rate constant at 300 K? 1 pts At...
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...
In Section 29-7, McQuarrie details the chain reaction between H2(g) and Br2(g). Consider the realted chain reaction H2(g) + Cl2(g) → 2HCl(g). The mechanism for this reaction is: Cl2(g) + Mg) = 2 Cl(g) +Mg) ki CI(g) + H2(g) → HCI(g) + H() k2 H(g) + Cl2(8) = HCI(g) + CI(8) k3 2Cl(g) + Mg) = Cl2(g) + Mg) ks (a) Use bond dissociation energies to explain why it is reasonable to exclude the analogous inhibition steps in this mechanism...
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