Use the bond energies provided to calculate the reaction enthalpy (AH°rxn) for the reaction: C2H4(g) + H2(g) – C2H6(g). Clearly show your work in the space provided below. For full credit, clearly show all your work in the space below, report your answer with correct sig figs and units, and place a box around your final answer. Bond Bond Energy (kJ/mol) C-C 347 C-H 414 C=C 611 H-H 436

Use the bond energies provided to calculate the reaction enthalpy (AH°rxn) for the reaction: C2H4(g) + H2(g) – C2H6(g). Clearly show your work in the space provided below. For full credit, clearly show all your work in the space below, report your answer with correct sig figs and units, and place a box around your final answer. Bond Bond Energy (kJ/mol) C-C 347 C-H 414 C=C 611 H-H 436

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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a) Using the balanced equation and the data in the table below, calculate the theoretical enthalpy of combustion. Note: you will need to include the enthalpy of vaporisation for the liquid components which are also given. CH3OH() +1.502(g) → CO2(g) + 2H2O (1) Average Bond Enthalpies (kJ mol‍¹) C-H C-C C-O O=O C=O O-H Enthalpy of Vaporisation (kJ mol-¹) Methanol Water 412 348 358 496 743 463 35 41
Use the molar bond enthalpy data in the table to estimate the value of AH for the equation Average molar bond enthalpies. (Hpoad) Bond kJ - mol- Bond kJ . mol-1 CH (g) + HBr(g) – → C,H, Br(g) O-H 464 C=N 890 The bonding in the molecules is shown. 0-0 142 N-H 390 C-0 351 N-N 159 H Br O=0 502 N=N 418 HBr - C=0 730 NEN 945 C-C 347 F-F 155 C=C 615 Cl-CI 243 C=C 811 Br-Br 192 C-H 414 Н-Н 435 439 H-F 565 C-F C-CI 331 H-CI 431 276 H-Br 368 C-Br 293 H-S 364 C-N 225 615 S-S C=N AHn = Capstior Source McDuarrio, Rock nd callogy de Goreral Chemaito Publosherris dgense Bocks
Write a Plan (without actual numbers, but including thebond energies you would use and how you would combine the malgebraically) for calculating the total enthalpy change of the following reaction:H₂(g)+O₂(g)→H₂O₂(g)(H--O--O--H)
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! 1 Q :0 F1 Calculate the enthalpy of the reaction below (AHrxn, in kJ) using the bond energies provided. 2 H₂(g) + O₂(g) → 2 H₂O(g). 482 133,809 (a 2 W F2 # 3 E Single Bond M Multiple Bonds I U ZO 80 F3 602 C=O 799 835 C=O 1072 C=N 615 O=O 494 C=N 887 N=N 942 **All values in kJ/mol** oc: 7 11 $ 4 H 432 411 346 386 305 167 459 C=C C=C O CNO a F4 358 201 142 SD F % 5 tv 0 F5 6 Q G F6 NA & 7 F7 G H 33611 RTY U * 8 W F8 ( 9 F9
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a) Using standard enthalpies of formation (in Appendix G in your text), calculate the standard enthalpy change (AH°) for the following reaction shown below. (Show all work.) b) Based on your calculation, is the reaction exothermic or endothermic? 2 H2S(g) + SO2(g) --> 3/8 S8(s) + 2 H20(g)
Consider the balanced reaction 4 A + 9 B → 8 C + 8 D and the enthalpies of formation provided in the table below. AH Compound (kJ/mol) A 170.8 231.1 D -98.4 Suppose that the AH of the overall reaction is -2,029.3 kJ/molxn. Calculate the value of the AHf of C in kJ/mol. Report your answer to three decimal places (ignore significant figures).
Calculating the heat of reaction from bond energies Calculate the heat of reaction AH for the following reaction: 2 H₂(g) + O₂(g) → 2 H₂O(g) You can find a table of bond energies by using the Data button on the ALEKS toolbar. Round your answer to the nearest kJ/mol. kJ mol X 1/5
If the reaction 2 H2(g) + O2(g) yields 2 H2O(l) is multiplied by 2 and the given enthalpy change is -286kJ, what will be the final enthalpy change of this reaction? a) 562 kJ b) -572 kJ c) -562 kJ d) 572 kJ