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
- PARTICIPATION 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_forwardk Plot In k Reset 1/k Slope = -1.23 x 104 K TO In TO 1/T The rate of the reaction N2O5(g) → 2 NO2(g) + 1/2 O2(g) is measured at different temperatures, with the following rate constants, k, determined: Temperature, K k, s-1 298 3.46 x 10-5 328 1.5 × 10-3 358 3.34 x 10-2 378 0.21 Use the graphing tool above to make an appropriate plot and determine the activation energy, E, for this reaction in units of kilojoules. Previous Nextarrow_forwardSelect the chemical reaction that can occur:arrow_forward
- 14. 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_forward1,200 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_forwardHow much time does it take to reduce the concentration of NO2 by half by looking at the reaction process curve below?arrow_forward
- #39arrow_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_forwardCalculate 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_forward
- A reaction profile (not to scale!) for the reaction C₂H5OH + Br¯ → C₂H5Br + OH- is shown below: E (kJ) C2H5OH + Br" 161 C2H5Br + OH" Reaction Coordinate Which of the following are true? (Select all that apply.) If the energy of the activated complex were decreased, AE would decrease. The energy of the products is higher than the energy of the reactants. O AE is negative. The magnitude of Ea for the reverse reaction is smaller than 161 kJ. 71arrow_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_forward2A(g) + 3/2B(g) Experiment e b) D d) k= 12345 Initial rate (mol/L.s) →→ C(g) 0.25*10-4 2.25x10-4 0.50×10-4 1.00×10-4 0.75*10-4 Initial [A] (mol/L) 5x10-2 15x10-2 5x10-2 10×10-2 5x10-2 unit: Overall reaction order is Rate = K[A][B] Initial [B] (mol/L) Reaction order with respect to A is Reaction order with respect to B is 5x10-2 5x10-2 10x10-2 5x10-2 15x10-2 O " O Calculate rate constant (k) based on data from experiment 3:arrow_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: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning