Determine the EA for the rate-determining step (step 1) for this reaction coordinate diagram, in kJ 100 87 kJ 80 78 kJ. PE (kJ) 60 55 kJ 50 kJ Created by E. Lee for Virtual Virginia 40 20 20 kJ Reaction Progress

Determine the EA for the rate-determining step (step 1) for this reaction coordinate diagram, in kJ 100 87 kJ 80 78 kJ. PE (kJ) 60 55 kJ 50 kJ Created by E. Lee for Virtual Virginia 40 20 20 kJ Reaction Progress

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions

Section5.8: Product- Or Reactant-favored Reactions And Thermodynamics

Problem 1.2ACP

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Biological standard states include specifying a reference temperature of 37.0C rather than the common reference temperature of 25.0C. For a chemical reaction in which H=24.3kJ see equation 2.62, by what percent does K change?
Monochloroethane (C2H5Cl) can be produced by the direct reaction of ethane gas (C2H6) with chlorine gas or by the reaction of ethylene gas (C2H4) with hydrogen chloride gas. The second reaction gives almost a 100% yield of pure C2H5Cl at a rapid rate without catalysis. The first method requires light as an energy source or the reaction would not occur. Yet G for the first reaction is considerably more negative than G for the second reaction. Explain how this can be so.
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Reaction #1 Co() + 2H2(g) → CH:OH() AS° = -332 J/K CH.(g) + 0:(g) AS° = +162 J/K Reaction #2 CH:OH(!) – AH', AG; s° Substance (kJ mor) (kJ mot') (JK' mor') Co(g) -110.5 197.674 -238.7 -166.4 126.8 CH:OH(f) CH(g) -74.8 186.2 NOTE: You should be able to work this problem without using any additional tabulated data. (a) Calculate AH for reaction #1. (b) Calculate AGf for CO(g). (c) Calculate S° for O2(g). (d) At what temperatures is reaction #1 spontaneous?
How would you solve c? Transcribed Image Text:Temperature (°C) AN A student conducts an experiment to determine the value of for the dissolution of Na₂C₂H₂O₂ (s). The student dissolves 10.0 g of Na₂C₂H₂O₂ (s) in room-temperature water in a beaker and measures the temperature over time. The data are given in the graph above. 24- 22- 20 18 16 14 12- 10 Time (a) The student touches the side of the beaker after the dissolution has occurred and observes that it is cold. What experimental evidence is consistent with the student's observation? (b) Is the dissolution of endothermic or exothermic? Justify your answer in terms of the flow of energy between the system and surroundings. in kJ/mol. (c) The student calculated the energy change for the dissolution to be 4600 J. Based on this value, calculate AH soln
The AG for the following reaction is -100.4 kJ. C२H4g) + H2(g) Given AG [C2H4(g)]- +68.4 kJ/mol, calculate AG"o (C2H6(). A.-168.8 k]/mol-rxn OB.-32.0 k]/mol-rxn OC+1.486 kJ/mol-rxn OD.+32,0 kJ/mol-rxn OE. +168.8 kl/mol-rxn
Given the data in the table below, AHrxn for the reaction Ca(OH); + 2H;AsO4 → Ca(H;AsO4)2 + 2H;O is _ kJ. [A] -4219 (B] -130.4 [C] -4519 [D] -76.4 AH, (kJ/mol) -986.6|| Substance Ca(ОН), HASO, Ca(H;AsOa)2 -900.4 -2346.0 H;0 -285.9 O A В C D
Carbon monoxide (CO) is toxic because it binds more strongly to the iron in hemoglobin (Hb) than doen orygen (Os) as indicated by these approximate standard fee-energy change in blood - Part A reaction A: Hb+0,- HO reaction B: Hb+Coco, Estimate the equum constant Kat 298 K to the qum VASA AG--70 kJ/mol AG--80 kJ/mol O coco+0,
Answer the following question using the reaction coordinate diagram shown below. 280 240 200 160+ 120+ 80 + 40+ Time What is the enthalpy (AH) of the forward reaction? O. А. -80 kJ B. 80 kJ С. 240 kJ D. 160 kJ Heat content (H) kilojoules
E Consider the reaction 4HCI(g) + O₂(g) 2H₂O(g) + 2Cl₂(g) Using the standard thermodynamic data in the tables linked above, calculate AG for this reaction at 298.15K if the pressure of each gas is 17.94 mm Hg. kJ/mol ANSWER: Submit Answer R F 70 % 5 T Retry Entire Group 9 more group attempts remaining B Cengage Learning | Cengage Technical Support A H N 7 J * 8 M K 1 9 O TOP this question. O P Previous Next> Save and Exit
→ C ||| = www-awa.aleks.com/alekscgi/x/Isl.exe/1o_u-lgNslkr7j8P3jH-lvgXwPgmUhvlCeeBZbuluBY TUHz/m/I OTHERMOCHEMISTRY Calculating the heat of reaction from molar reaction enthalpy a... A chemist measures the energy change AH during the following reaction: Cl₂(g)+H₂(g) → 2 HCl(g) Use the information to answer the following questions. This reaction is... Suppose 68.3 g of Cl₂ react. Will any heat be released or absorbed? 75°F Sunny If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Explanation ΔΗ = - 184. kJ Round your answer to 3 significant digits. Check endothermic. O exothermic. O Yes, absorbed. O Yes, released. O No. H Q Search 0 0x10 X S a C 4 4 1/3 Andrew V Relate © 2023 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility 25 4 ? ➤III olo Ar 7:37 PM 7/16/2023