(a)
Interpretation : At equilibrium the value of
Concept Introduction :
The Arrhenius equation is used to determine the temperature dependence of the
Activation energy (in the same units as R*T)
(a)
Interpretation : A catalyst can increase the rate of forward reaction but not the reverse reaction is that statement is true or false.
Concept Introduction :
The catalysis is the process of increasing the rate of the
Want to see the full answer?
Check out a sample textbook solutionChapter 15 Solutions
Chemical Principles
- A reaction Occuring in a Star 2 b 3 c H + H---> He + n a 1 2 d In order to balance the equation above, the values of a,b,c,d arearrow_forwardThe following data were collected for the reaction below at 298 K. Q (ag) +4 R (aq) +2 S (aq) —> 3 T (aq) +2 U (aq) Calculate the rate of appearance of compound T between 10 s and 50 s.arrow_forwardIn biological systems, acetate ion is converted to ethyl alcohol as follows: CH3COO–(aq) + 3 H+(aq) + 2e– ----> CH3CHO(aq) + H2O E° = –0.581 V CH3CHO (aq) + 2 H+(aq) + 2e– ------> C2H5OH(aq E° = –0.197 V Find E° and ∆G° for the overall process.arrow_forward
- A stoichiometric mixture of CO(g) and H2(g) was allowed to react in two different 2.0L rigid containers at a constant temperature of 298K. The reaction is represented by the equation above. Diagram 1 represents the uncatalyzed reaction and diagram 2 represents the catalyzed reaction one hour after the reactants were mixed. Which of the following correctly explains the experimental results represented in the particle diagrams? A.) Although the reaction is thermodynamically favorable because ΔG°<0 based on the value of K, only the catalyzed reaction could proceed in one hour because its reactant molecules had a higher average kinetic energy. B.) Although the reaction is thermodynamically favorable because ΔG°<0 based on the value of K, only the catalyzed reaction could proceed in one hour because it has a lower activation-energy reaction pathway. C.) The reaction is not thermodynamically favorable because ΔG°>0 based on the value of K, but the addition of a catalyst improved the…arrow_forwardCalculate the ratio of rates of catalyzed to non-catalyzed reactions at 37°C, given that the Gibbs energy of activation for a particular reaction is reduced from 100 kJ/mol to 10 kJ/mol. Ans: 1.5 x 1015arrow_forwardFor the reaction 4A(g)+3B(g) →2C(g) the following data were obtained at constant temperature a) What is the order with respect to each reactant? (b) Write therate law. (c) Calculate k.arrow_forward
- Find the rate constant (k) for reaction mixture 1arrow_forward2a) Briefly explain, in your own words, the difference between the "activation energy" of a reaction and the "net free energy change" of a reaction.arrow_forwardWhat are Pseudo unimolecular reactions? Explain with the help of a suitable example.arrow_forward
- Use the Arrhenius equation to calculate Ea from the k versus T data.arrow_forwardFor the reaction:2H2(g) + O2(g) ------> 2H2O(l) Calculate ΔS°sys _____J/K Calculate ΔS°surr _____ J/Karrow_forward1.) The rate constant for a second order reaction is 0.20 M-1s-1. The time it takes for 0.50 M of reactant to halve is________ s 2.) For the reaction PCl3 (g) + Cl2 --> PCl3 (g) , ∆H = –88 kJ. Which of the following is true? The reaction is non -spontaneous at all temperatures The reaction is spontaneous only at low temperatures The reaction is spontaneous only at high temperatures The reaction is spontaneous at all temperatures 3.) The rate constant for a second order reaction is 0.20 M-1s-1. The time it takes for 0.50 M of reactant to halve is________ s a. 1.2 b. 3.5 c. 10 d. 2.5 4.) For the reaction 2A + 4B --> 3C + 2D, the rate of reactions can be expressed in terms of ∆B as: a. –∆B/4∆t b.–4∆B/∆t c. +∆B/∆t d.+∆B/4∆t 5.) A plot of lnk (k is the rate constant) vs 1/T gives a linear graph where the slope is equal to…arrow_forward
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning