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Without doing a calculation, predict whether your estimate in part (a) is more negative or less negative than the true reaction enthalpy O The estimate from Part A is less positive or smaller than the true reaction enthalpy O The estimate from Part A is equal to the true reaction enthalpy O The estimate from Part Ais less negative or larger than the true reaction enthalpy O The estimate from Part A is less positive or larger than the true roaction enthalpy Submit Beaveat Anawer

Without doing a calculation, predict whether your estimate in part (a) is more negative or less negative than the true reaction enthalpy O The estimate from Part A is less positive or smaller than the true reaction enthalpy O The estimate from Part A is equal to the true reaction enthalpy O The estimate from Part Ais less negative or larger than the true reaction enthalpy O The estimate from Part A is less positive or larger than the true roaction enthalpy Submit Beaveat Anawer

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter19: The Chemistry Of The Main-group Elements
Section: Chapter Questions
Problem 68QRT
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I only need help understanding B. so dont worry about doing the other parts. Thanks!
Part A Consider the reaction: 2H, (g) +0: (8)-2H;0(1). Average Bond Enthalpies (k/mol) Use the bond enthalples in the table to estimate AH for this reaction, ignoring the fact that wa is in the liquid state. C-H 413 N-H 391 0-H 463 F-F 155 C-C 348 N-N 163 0-0 146 Express your answer in kilojoules to 3 significant figures. C=C 614 N-O 201 0=0 495 Cl-F 253 C-N 203 N-F 272 0-F 190 CI-CI 242 C-0 358 N-CI 200 0-CI 203 Br-F 237 485 kJ Bumit Previous Answers C=0 799 N-Br 243 0-I 234 Br-CI 218 C-F 485 H-H 436 Br-Br 193 v Correct C-CI 328 H-F 567 C-Br 276 H-CI 431 C-I 240 H-Br 366 H-I 299 1-CI 208 Part B in I-Br 175 I-I 151 AH Without doing a calculation, predict whether your estimate in part (a) is more negative or less negative than the true reaction enthalpy O The estimate from Part A is less postive or smaller than the true reaction enthalpy O The estimate from Part A is equal to the true reaction enthalpy O The estimate from Part Ais less negative or larger than the true reaction enthalpy O The estimato trom Part A is less positive or larger than the true reaction enthalpy Submit Beauest Anawer Part C Use the enthalpies of formation in Anendix C to determine the true reaction enthalpy Express your answer in kilojoules to 3 significant figures. [2( 572 kJ Previous Anawers H. v Correct LAH
Transcribed Image Text:Part A Consider the reaction: 2H, (g) +0: (8)-2H;0(1). Average Bond Enthalpies (k/mol) Use the bond enthalples in the table to estimate AH for this reaction, ignoring the fact that wa is in the liquid state. C-H 413 N-H 391 0-H 463 F-F 155 C-C 348 N-N 163 0-0 146 Express your answer in kilojoules to 3 significant figures. C=C 614 N-O 201 0=0 495 Cl-F 253 C-N 203 N-F 272 0-F 190 CI-CI 242 C-0 358 N-CI 200 0-CI 203 Br-F 237 485 kJ Bumit Previous Answers C=0 799 N-Br 243 0-I 234 Br-CI 218 C-F 485 H-H 436 Br-Br 193 v Correct C-CI 328 H-F 567 C-Br 276 H-CI 431 C-I 240 H-Br 366 H-I 299 1-CI 208 Part B in I-Br 175 I-I 151 AH Without doing a calculation, predict whether your estimate in part (a) is more negative or less negative than the true reaction enthalpy O The estimate from Part A is less postive or smaller than the true reaction enthalpy O The estimate from Part A is equal to the true reaction enthalpy O The estimate from Part Ais less negative or larger than the true reaction enthalpy O The estimato trom Part A is less positive or larger than the true reaction enthalpy Submit Beauest Anawer Part C Use the enthalpies of formation in Anendix C to determine the true reaction enthalpy Express your answer in kilojoules to 3 significant figures. [2( 572 kJ Previous Anawers H. v Correct LAH
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