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- 1. 5. Draw a potential energy diagram for the reaction: A +B Cusing the following information. a) The mechanism consists of one elementary step. b) The reaction is endothermic. c) The activation energy for the reaction has a value 3x the enthalpy value of the reaction.Which energy levels precede and succeed 4s ?The reaction 2A + 3B → products has the rate law, rate = k[A][B]. If the concentration of A is doubled and that of B is doubled by what factor will the rate of reaction increase? (4) 4 3 (3) 8 (1) 6 O (2) 2 E D T C $ 4 R F 07 dº % 5 V T G 6 MacBook Pro B Y & 7 H U N 8 00 J 9 K M O P V
- D В E A Reaction progress Energyur progress has been saved Question 4 of 10 Study the reactions. 1. C (s) + O2 (g) → CO, (g) 2. H2 (9) +02 (g) → H20 (1) AH = –393.5 kJ AH = -285.8 kJ/mol 3 3. C (s) + H2 (g) + 202 (9) → CO, (g) + H2O (1) ΔΗ? Which steps can be used to calculate the enthalpy of Reaction III correctly? O adding the enthalpy of Reaction I and the enthalpy of Reaction II O first reversing Reaction Il and then adding the enthalpy of Reaction l O subtracting the enthalpy of Reaction I from the enthalpy of Reaction II O dividing the enthalpy of Reaction I by the enthalpy of Reaction II PreviousTwo successive reactions, D→E and E→F, haveyields of 48% and 73%, respectively. What is the overall percentyield for conversion of D to F?
- M * 00 ト 유 유 5, If you wrote the rate law expression for the reaction A + B-→ C, based on the following data, what would be the order with respect to A and B? (A] M [B]M Rate M/s 5 5 5. O 1,0 O 2,0 00,2 MacBook Air DD F7 F4 F5 F6 F8 * ) ( 9 6. R G NQ2. Carbonic Anhydrase or carbonic dehydratase is a family of metalloenzymes containing zinc (Zn) ion in its active site. Carbonic anhydrase can greatly increase the rate of this reaction, reaching a reaction rate of 104 - 106 per second. It is defined as the enzyme found in red blood cells, other parts of animals and plants, that breaks down carbonic acid with carbon dioxide and water. CO:(2) – H»O(1) – H.CO:(ag) For the carbonic anhydrase activity specified by the equation above, evaluate the standard reaction Gibbs energy at 25 °C?The following Reaction Mechanism is used: A+B+C --> D+E (slow) D+F --> B+X (fast) What is the Catalyst for the mechanism? A, B, C, D, E, F, or there is no catalyst? (answer options)
- A suggested mechanism for the decomposition of peroxide (H2O2) is H2O2(aq) ->>> 2OH(aq) H2O2(aq) + OH(aq) H2O()+ HO2(g) HO2(g) + OH(aq)) → H2O(l) + O2 (g) ->> Based on the mechanism which statement is true? (1) The rate law is rate = k[H202] (2) the molecularity of the slow reaction is 4 (4) OH2 is an intermediate (3) OH is a catalyst A Moving to the next question prevents changes to this answer. MacBook Pro fast slow fastThe following data were collected for the destruction of O3 by H (O, + H – 02 + OH) at very low concentrations: Trial (0] (M) [H] (M) Initial Rate (M/s) 1. 5.17 x 10-33 3.22 x 10-26 1.88 x 10-14 2.59 x 10-33 3.25 x 10-26 9.44 x 10-15 5.19 x 10-33 6.46 × 10-26 3.77 x 10-14 (a) Write the rate law for the reaction. (b) Calculate the rate constant. 3.25. For the reaction of 2 A+B +C-D+E, the rate of reaction = k[A)? (8). Which of the following mechanisms is %3! possible. Mechanism I: A+A-F slow Mechanism II: A+B-D fast F+B- D fast A+C-F slow C+A-E fast FE fast Mechanism III:A+A +B-F slow Mechanism IV: A+C-D slow F+C-D+E fast A+B-E fast O a) Mechanism III is possible b) Mechanism Il is possible c) Mechanism I is possible d) None of the mechanisms are possible e) Mechanism IV is possible