Calculate the enthalpy change for the combustion reaction below.3_ CH;OH) + _ O2(9) → _ C(s) + _ CO(g) + _H2O9)DHO = ?xnSingle Bond Energies (kJ/mol of bonds)Cl BrHCN OFH 436C 413 346N 391 305 163O 463 358 201 146S 347 272226F 565 485 283 190 284 155Cl 432 339 192 218 255 253 242Br 366 285201 217 249 216 193I 299 213201278 208 175 151-

3CH3OH (l) + 5/2 O2 (g) --> C (s) + 2CO (g) + 6H2O (g)

Calculate the enthalpy change for the combustion reaction below. 3 CH3OH () O29) → _ C(s) +– CO) _ H2O(g) DHO + xn Single Bond Energies (kJ/mol of bonds) H C S F CI Br Н 436 C 413 346 N 391 305 163 O 463 358 201 146 S 347 272 226 - - F 565 485 283 190 284 155 Cl 432 339 192 218 255 253 242 Br 366 285 201 217 249 216 193 - I 299 213 201 278 208 175 151 ||

Calculate the enthalpy change for the combustion reaction below. 3 CH3OH () O29) → _ C(s) +– CO) _ H2O(g) DHO + xn Single Bond Energies (kJ/mol of bonds) H C S F CI Br Н 436 C 413 346 N 391 305 163 O 463 358 201 146 S 347 272 226 - - F 565 485 283 190 284 155 Cl 432 339 192 218 255 253 242 Br 366 285 201 217 249 216 193 - I 299 213 201 278 208 175 151 ||

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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Calculate the enthalpy of the reaction below (DHrxn, in kJ) using the bond energies provided. 2H2 (g) + O2 (g) --> 2H2O (g)
26. From the relevant bond energies given below, find the approximate AH ( in kilojoules) for the industrial synthesis of chloroform (CHC3) in a reaction of methane ( CH4) with chlorine gas (Cl2). Is the reaction exothermic or endothermic? (4 CH4 (g) + 3Cl+ (g) — СHC1(g) +3 HсI (9) Bond Dissociation Energies ( Bond Enthalpies) in kJ/mol at 298K for Selected Bonds Bond Bond Energy (kJ/mol) С —Н 410 kJ/mol Cl-Cl 243kJ/mol C-Cl 330kJ/mol H-C1 432 kJ/mol
Use the molar bond enthalpy data in the table to estimate Bond kJ - mol-1 Bond kJ - mol- the value of AHin for the equation. О-Н 464 C=N 890 0–0 142 N-H 390 NH, (g) + 20,(g) → HNO, (g) + H,O(g) С-О 351 N-O 201 The bonding in the molecules is shown. O=0 502 N=N 418 C=0 730 N=O 607 + С-С 347 F-F 155 C=C 615 Cl-CI 243 C=C 811 Br-Br 192 С-Н 414 Н-Н 435 С-F 439 Н-F 565 C-CI 331 H-CI 431 С-Br 276 Н-Br 368 С-N 293 H-S 364 C=N 615 S-S 225 Activate WinkJomol-
2. Calculate the enthalpy for the following reaction: → 2NO2 (g) AH = ? kJ Nag) + 20zg) Using the following two equations: Nzig) + 2NO2 (e AH = +180kJ 2NO(g) O2(9) Ozg) 2NO(g) AH = +112kJ
Given the listed average bond energies (BE), calculate the enthalpy change for the production of one mole of methanol (CH3OH) by the following reaction. (There are two C=O double bonds in CO) CO2(g) + 3 H2(g) - CH;OH(g) + H2O(g) B.E.C-O = 300 kJ/mol B.E.C=0 = 700 kJ/mol B.E.H-H = 450 kJ/mol B.E.H-O = 500 kJ/mol B.E.H-C = 400 kJ/mol Select one: Oa. 250 kJ O b. -250 kJ Ос. 50 kJ d. -950 kJ Activate Windows О е. 950 kJ Go to Settings to activate Windows.
Calculate the enthalpy of the reaction below (AHrxn, in kJ) using the bond energies provided. H₂(g) + CH3CH₂C(=O)H → CH3CH₂CH₂OH Single Bond H C N O Multiple Bonds H 432 411 346 386 459 358 C **All values in kJ/mol** 305 167 201 C=C C=C 835 N O 602 C=O C=O C=N C=N 887 615 O=O N=N 142 799 1072 494 942
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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
Given reaction A + 2B-3C+4D with following standard enthalpies of formation AH:A-10.0 kJ/mol, B-5.0 kJ/mol, C-2.0 kJ/mol, D-12.0 kJ/mol. What is the enthalpy change if 2 moles of B are used in the reaction? O - 68.0 kJ O 68.0 kJ O 34.0 kJ O-34.0 kJ
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
When 1.42 g of iron reacts with 1.80 g of chlorine, 3.22 g of iron(II) chloride (FeCl2, molar mass = 126.75 g/mol) and 6.8 kJ of heat is produced. What is the enthalpy change for the reaction when 1 mole of iron(II) chloride is produced? round to sig figs