An uncatalyzed reaction has a rate of 4.2 x 10^-7 sec-1 at 25 degrees Celsius. When...
An uncatalyzed reaction has a rate of 4.2 x 10^-7 sec-1 at 25 degrees Celsius. When an enzyme is added the rate is 3.2 x 10^4 sec-1. Calculate the difference in activation energy between the catalyzed and uncatalyzed reactions. (Please show work so I can see what you did).
A. 22 kJ/mol
B. 25 kJ/mol
C. 43 kJ/mol
D. 62 kJ/mol
Homework Answers
Add Answer to:
An uncatalyzed reaction has a rate of 4.2 x 10^-7 sec-1 at 25
degrees Celsius. When...
An uncatalyzed reaction has a rate of 4.4 x 10-7 s–1 at room temperature (25 °C)....
An uncatalyzed reaction has a rate of 4.4 x 10-7 s–1 at room temperature (25 °C). When an enzyme is added the rate is 3.1 x 104 s–1. If the height of the activation barrier for the uncatalyzed rate is 28.6 kcal/mol, what is the height of the activation barrier for the catalyzed rate? Report your answer in terms of kcal/mol to the nearest tenths. Also, assume the pre-exponential terms for the uncatalyzed and catalyzed reactions are the same.
calculate the rate constant at 25 degrees celsius for a reaction that has a rate constant...
calculate the rate constant at 25 degrees celsius for a reaction that has a rate constant of 5.5x10^-5 s^-1 at 100 degrees celsius and an activation energy of 40.0 KJ/mol
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
The uncatalyzed decomposition of CH3CHO has an activation energy of 188 kJ mol-1. I2 catalyzes the...
The uncatalyzed decomposition of CH3CHO has an activation energy of 188 kJ mol-1. I2 catalyzes the reaction, and at 600 K the catalyzed reaction is ten million times faster than the uncatalyzed reaction. Therefore, assuming that the pre-exponential factor, A, is the same for both the uncatalyzed and catalyzed reactions, the activation energy of the catalyzed reaction is, in kJ mol- 80.4 B. 71.0 C. 108 D. 117 E. 172
A particular first-order reaction has a rate constant of 1.35 x 10^2s-1 at 25.0 degrees celsius....
A particular first-order reaction has a rate constant of 1.35 x 10^2s-1 at 25.0 degrees celsius. What is the magnitude of k at 65.0 degrees celsius if Ea = 55.5 kJ/mol?
Be sure to answer all parts. The rate constant of a reaction is 4.2 x 10's...
Be sure to answer all parts. The rate constant of a reaction is 4.2 x 10's at 25°C, and the activation energy is 33.6 kJ/mol. What is k at 75°C? Enter your answer in scientific notation. *10 ,1
Ignore #9 actually ignore the whe whole question because is missing information! Thank You 9. Which...
Ignore #9
actually ignore the whe whole question because is
missing information! Thank You
9. Which represents the catalyzed reaction activation energy? a. AGN(double dagger) b. AGE(double dagger) C.S(double dagger) d. ES(double dagger) 10. For the reactions in the diagram, the rate of the catalyzed reaction is 955 times that of the uncatalyzed reaction. What is the stabilization energy difference between these reactions at standard temperature? a. 17.0 kJ/mol b. 18.6 kJ/mol C. 19.0 kJ/mol d. 21.3 kJ/mol
Suppose that a catalyst lowers the activation barrier of a reaction from 121 kJ mol−1 to...
Suppose that a catalyst lowers the activation barrier of a reaction from 121 kJ mol−1 to 55 kJ mol−1 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.)
4. Suppose that a reaction R → P proceeded according to the energy diagram shown. a....
4. Suppose that a reaction R → P proceeded according to the energy diagram shown. a. [4 pts] A catalyst lowers the activation barrier of a reaction from 125 kJ/mol to 55 kJ/mol. Write out a reaction mechanism for the catalyzed reaction. b. [6 pts] Sketch what the catalyzed reaction pathway would look like on an energy diagram. All relative heights should make sense for catalyzed pathways for full credit. c. [6 pts] By what factor would you expect the...
Calculate the rate constant at 225 degrees C for a reaction that has a rate constant...
Calculate the rate constant at 225 degrees C for a reaction that has a rate constant of 8.1 x 10^-4 s^-1 at 95 degrees C and an activation energy of 95.0 kj/mol
Be sure to answer all parts. The rate constant of a reaction is 4.2 x 10's at 25°C, and the activation energy is 33.6 kJ/mol. What is k at 75°C? Enter your answer in scientific notation. *10 ,1
Ignore #9
actually ignore the whe whole question because is
missing information! Thank You
9. Which represents the catalyzed reaction activation energy? a. AGN(double dagger) b. AGE(double dagger) C.S(double dagger) d. ES(double dagger) 10. For the reactions in the diagram, the rate of the catalyzed reaction is 955 times that of the uncatalyzed reaction. What is the stabilization energy difference between these reactions at standard temperature? a. 17.0 kJ/mol b. 18.6 kJ/mol C. 19.0 kJ/mol d. 21.3 kJ/mol
4. Suppose that a reaction R → P proceeded according to the energy diagram shown. a. [4 pts] A catalyst lowers the activation barrier of a reaction from 125 kJ/mol to 55 kJ/mol. Write out a reaction mechanism for the catalyzed reaction. b. [6 pts] Sketch what the catalyzed reaction pathway would look like on an energy diagram. All relative heights should make sense for catalyzed pathways for full credit. c. [6 pts] By what factor would you expect the...
Most questions answered within 3 hours.
-
The following data set consists the number of minutes a sample
of 25 people run every...
asked 3 minutes ago -
Suppose vacuum cleaners are part of the market basket used to
compute the CPI. Suppose also...
asked 15 minutes ago -
What intermediate results after the addition of H3O+ to
E-3-methyl-2-pentane?
pentene*
asked 20 minutes ago -
Potassium hydrogen phthalate is a solid, monoprotic acid
frequently used in the laboratory to standardize strong...
asked 39 minutes ago -
1-Describe the 3 major classes of ownerships of retailers
2-What are the differences between consumer and...
asked 22 minutes ago -
A Student takes a sample from a table top in the student lounge
using a sterile...
asked 29 minutes ago -
Give an answer that's easy to understand. Define stack data
structure. Show how the Stack operations...
asked 39 minutes ago -
The following financial information is for Annapolis Corporation
are for the fiscal years ending 2019 &...
asked 28 minutes ago -
Which prezygotic barrier to reproduction results in hybrid
sterility?
Question 11 options:
A)
Habitat isolation
B)...
asked 38 minutes ago -
You own a portfolio that has $2709 invested in Stock A and $4387
invested in Stock...
asked 57 minutes ago -
A parameter estimate is said to be statistically significant if
there is sufficient evidence that the...
asked 55 minutes ago -
Based on the following table, calculate the ES, EF, LS, LF and
Slack for each activity...
asked 53 minutes ago