Practice ProblemATTEMPT
Use the data in the following table to determine the activation energy of the reaction:
T(K) |
k(s-1) |
625 |
|
635 |
|
645 |
|
Want to see the full answer?
Check out a sample textbook solutionChapter 14 Solutions
Chemistry
- Which of the following could be the instantaneous rate ofthe reaction in Figure 14.3 at t = 1000 s?(a) 1.2 x10-4 M>s(b) 8.8 x 10-5 M>s(c) 6.3 x 10-5 M>s(d) 2.7 x 10-5 M>s(e) More than one of these.arrow_forwardPARTICIPATION Use graphs of concentration and time to determine the order and calculate k of reaction. 2N₂O5(g) → 4NO₂(g) + O₂(g) Time (s) 0 600 1200 1800 2400 3000 3600 S.Pasishnyk FSW [N₂O5] (M) In[N₂05] 0.0365 0.0274 0.0206 0.0157 0.0117 0.00860 0.00640 -3.310 -3.597 -3.882 -4.154 -4.448 -4.756 -5.051 1/[N₂O5] (M-1) 27.4 36.5 48.5 63.7 85.5 116 156 = openstax™ 38arrow_forward14. Which one of the following graphs is wrong for the reaction A2 (g) + B2 (g) → 2AB (g) + heat |LAB) B) C) A) time time time P(atm) E) (at constant) D) time timearrow_forward
- 1,200 Determine the forward activation energy and change in for a reaction from the graph below. A) Ea =D 1000 kJ/mol, ΔH =D +200 kl/mol enthalpy 1,000 800 B) Ea = 600 kJ/mol, AH = +400 kJ/mol C) Ea = 600 kJ/mol, AH = -400 kJ/mol D) Ea = 1000 kJ/mol, AH = +800 kJ/mol E) Ea = 400 kJ/mol, AH = -400 kJ/mol %3D 600 %3D 400 200 Reaction progress Energy (kJ/mol)arrow_forwardPotential Energy (kJ/mol) 112.5- 90.0- 67.5- 45.0- 22.5. 0.0 1 Which statement is incorrect for the following reaction profile for a single collision reaction? Reaction Profile 3 A) Point 1 is the reactant. B) The activation energy is 90 kJ/mol. C) The activated complex exists at point 2. D) AH = 0.0 kJ/mol. E) The reaction is endothermic.arrow_forwardQuestion 14 The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 K to 500 K. Assuming transition state theory is valid, the value of E/R is NOTG 8987 K 8621 K 9210 K O 8784 Karrow_forward
- Calculate k when [X] = 0.27 M and the rate of the reaction is 0.0050 M/s. k = Units TOOLS M-s- x10 44% Insert E R (T F TH K M Alt Ctrlarrow_forwardEnergy (kJ/mol) 50 -37.5 25 +12.5 1 Which statement is incorrect for the following reaction profile? 2 Reaction Profile 3 A) The reaction is exothermic. B) The activation energy is 50 kJ/mol. C) AH = -25.0 kJ/mol. D) Point 2 is an activated complex. E) The products are lower in energy than the reactants.arrow_forwardFor the reaction, 2N₂O5(g) The following data were obtained: T = 339 K [N₂O), M 1.00 × 10 Time 0 100 300 600 900 a. 45.8 kJ/mol b. 120.6 kJ/mol 112.5 kJ/mol 95.7 kJ/mol 68.5 kJ/mol 89.7 kJ/mol 4NO2(g) + O2(g) C. d. e. f. *10² 2.33 - 10- 5.41- 10¹ 1.26 × 10¹ X T = 310 K [N₂Os]. M 1.00 × 10 9.54 × 10 X 8.63 10% 7.43 - 10 6.39 × 10 A T = 304 K [N₂O₂]. M Find the Ea using the best-fit straight line of the three rate constants at the three temperature values. 1.00 × 10 9.69 × 10² 9.15 × 10² 8.40 - 10 7.70 × 10²arrow_forward
- If the rate law for the reaction A ⟶Products is rate = k[A], calculate the value of k from the following data: [A] (M) Initial Rate (M/s) 0.10 0.015 (A)6.7 s-1 (B)0.015 s-1 (C)0.15 s-1 (D)67 s-1arrow_forwardFor the reaction A(g) + B(g) + C(g) D (g) The following data was obtained at constant temperature: Experiment 1 2 3 4 [A] (mol) Initial [A] 0.100 0.200 0.200 0.100 Initial mol [B] (TO) Initial [C](mol) L 0.0200 0.0200 0.0200 0.0400 0.100 0.100 0.200 0.100 Initial rate 1.25 × 10 2.50 × 10 1.00 × 10 1.25 × 10 mol L's 2 -2 1 -2arrow_forwardThe diagram shows a Maxwell-Boltzmann distribution curve for two different temperatures, T1 and T2. EA represents the activation energy. Which of the following statements is correct? a) If a catalyst were used, both curves would shift to the right of EA b) Temperature T1 is greater than temperature T2 c) The particles at temperature T1 and T2 have an equal number of collisions possessing the activation energy d)There are more collisions possessing the activation energy for temperature T2 than for for temperature T1arrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage LearningChemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
- Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning