Suppose that a catalyst lowers the activation barrier of a reaction from 123 kJ/mol to 51...

Suppose that a catalyst lowers the activation barrier of a reaction from 123 kJ/mol to 51 kJ/mol . By what factor would you expect the reaction rate to increase at 25 ∘C? (Assume that the frequency factors for the catalyzed and uncatalyzed reactions are identical.) Express your answer using two significant figures. k2k1 =

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queen_honey_blossom answered 2 years ago

Suppose that a catalyst lowers the activation barrier of a reaction from 122 kJ/mol to 59...

Suppose that a catalyst lowers the activation barrier of a reaction from 122 kJ/mol to 59 kJ/mol . Part A By what factor would you expect the reaction rate to increase at 25 ∘C? (Assume that the frequency factors for the catalyzed and uncatalyzed reactions are identical.)

The activation energy of an uncatalyzed reaction is 70.0 kJ/mol. When a catalyst is added, the...

The activation energy of an uncatalyzed reaction is 70.0 kJ/mol. When a catalyst is added, the activation energy (at 20.0 C) is 42.0 kJ/mol. Theoretically, to what temperature (C) would one have to heat the solution so that the rate of the uncatalyzed reaction is equal to the rate of the catalyzed reaction at 20. 0 C? Assume the frequency factor A is constant, and assume the initial concetrations are the same.

The activation barrier for an uncatalyzed reaction is estimated to be 15.8 kcal/mol. The activation barrier...

The activation barrier for an uncatalyzed reaction is estimated to be 15.8 kcal/mol. The activation barrier for the catalyzed reaction is estimated to be 8.6 kcal/mol. How many times faster is the catalyzed rate versus the uncatalyzed rate? In other words, by what factor/coefficient do you have to multiply the uncatalyzed rate to equal the catalyzed rate? Assume the temperature is 298 K, and enter your answer to the nearest ones.

The activation energy for a reaction is changed from 184 kJ/mol to 59.3 kJ/mol at 600....

The activation energy for a reaction is changed from 184 kJ/mol to 59.3 kJ/mol at 600. K by the introduction of a catalyst. If the uncatalyzed reaction takes about 2653 years to occur, about how long will the catalyzed reaction take? Assume the frequency factor A is constant and assume the initial concentrations are the same

A) The activation energy of a certain reaction is 48.0 kJ/mol . At 27 ∘C ,...

A) The activation energy of a certain reaction is 48.0 kJ/mol . At 27 ∘C , the rate constant is 0.0120s−1. At what temperature in degrees Celsius would this reaction go twice as fast? B) Given that the initial rate constant is 0.0120s−1 at an initial temperature of 27 ∘C , what would the rate constant be at a temperature of 170. ∘C for the same reaction described in Part A?

a) The activation energy of a certain reaction is 47.0 kJ/mol . At 24 ∘C ,...

a) The activation energy of a certain reaction is 47.0 kJ/mol . At 24 ∘C , the rate constant is 0.0190s−1. At what temperature in degrees Celsius would this reaction go twice as fast? b)Given that the initial rate constant is 0.0190s−1 at an initial temperature of 24 ∘C , what would the rate constant be at a temperature of 100. ∘C for the same reaction described in Part A?

a,The activation energy of a certain reaction is 37.1 kJ/mol . At 30 ∘C , the...

a,The activation energy of a certain reaction is 37.1 kJ/mol . At 30 ∘C , the rate constant is 0.0170s−1. At what temperature in degrees Celsius would this reaction go twice as fast? b,Given that the initial rate constant is 0.0170s−1 at an initial temperature of 30 ∘C , what would the rate constant be at a temperature of 170. ∘C for the same reaction described in Part A?

A. The activation energy of a certain reaction is 42.0 kJ/mol . At 29 ∘C ,...

A. The activation energy of a certain reaction is 42.0 kJ/mol . At 29 ∘C , the rate constant is 0.0190s−1. At what temperature in degrees Celsius would this reaction go twice as fast? B. Given that the initial rate constant is 0.0190s−1 at an initial temperature of 29 ∘C , what would the rate constant be at a temperature of 120. ∘C for the same reaction described in Part A? Please give the correct units too. Thank you!

The activation energy of a certain reaction is 35 kJ/mol . At 20 ∘C, the rate...

The activation energy of a certain reaction is 35 kJ/mol . At 20 ∘C, the rate constant is 0.0130 s−1. At what temperature would this reaction go twice as fast? Express your answer numerically in degrees Celsius

Using the initial rate date to determine the activation energy (in kJ/mol) for the reaction A...

Using the initial rate date to determine the activation energy (in kJ/mol) for the reaction A + B (arrow sign) C: Experiment Temperature (K) Initial A Initial B Initial Reactive Rate (m/s) 1 700 0.20 0.10 1.8 x 10^-5 2 700 0.40 0.10 3.6 x 10^-5 3 700 0.10 0.20 3.6 x 10^-5 4 600 0.50 0.50 4.3 x 10^-5 What is the reaction order of HI?____________________ What is the energy for the reaction?_________________ kJ/mole (2 significant figures) What is the value of...

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