Н-Н436 kJ/molС-Н413 kJ/molC=C614 kJ/molH-CI431 kJ/molC-C348 kJ/molC=C839 kJ/mol293 kJ/molC=0O=0Н-F567 kJ/molС-N799 kJ/molN-H391 kJ/molC-O358 kJ/mol495 kJ/molN-O201 kJ/molС-F485 kJ/molC=01072 kJ/molО-Н463 kJ/molC-CI328 kJ/molC=N615 kJ/mol0–0146 kJ/molC-S259 kJ/molN=N418 kJ/molF-F155 kJ/molCl-CI242 kJ/molN=N941 kJ/molC=N891 kJ/molEstimate the enthalpy change (A Hrxn) of the following reaction for 2 moles of Cl2 using the bond energiesabove.H-H+ Cl-CIH-CI + H-CIkJ

The reaction taking place is given as, => H-H + Cl-Cl -----> H-Cl + H-Cl The enthalpy change of any reaction is given by the bond energies as, => ΔH = Sum of (bond energies of bonds broken) - sum of (bond energies of bonds formed) In the above reaction we can see that 1 H-H bond and 1 Cl-Cl bond is broking and 2 H-Cl bond is forming. Hence the ΔH of the reaction can be written as, => ΔH = H-H bond energy + Cl-Cl bond energy - 2 X H-Cl bond energy Hence substituting the values we get, => ΔH = 436 + 242 - 2 X 431 = -184 KJ/mol. Hence for 1 moles of Cl2 reacting, the total enthalpy change is -184 KJ. Hence the enthalpy change for 2 moles of Cl2 = 2 X (-184) = -368 KJ. Hence the answer is -368 KJ.

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Chemistry

Н-Н H-CI 436 kJ/mol С-Н 413 kJ/mol C=C 614 kJ/mol 431 kJ/mol C-C 348 kJ/mol 839 kJ/mol 567 kJ/mol Н-F N-H C-N С-О 293 kJ/mol 358 kJ/mol 799 kJ/mol 495 kJ/mol 391 kJ/mol N-O O-H O-0 F-F 201 kJ/mol С-F 485 kJ/mol 1072 kJ/mol 463 kJ/mol C-CI 328 kJ/mol C=N 615 kJ/mol 146 kJ/mol C-S 259 kJ/mol N=N 418 kJ/mol 155 kJ/mol Cl-CI 242 kJ/mol N=N 941 kJ/mol C=N 891 kJ/mol Estimate the enthalpy change (A Hrxn) of the following reaction for 2 moles of Cl2 using the bond energies above. H-H + CI-CI → H-CI + H-CI kJ

Н-Н H-CI 436 kJ/mol С-Н 413 kJ/mol C=C 614 kJ/mol 431 kJ/mol C-C 348 kJ/mol 839 kJ/mol 567 kJ/mol Н-F N-H C-N С-О 293 kJ/mol 358 kJ/mol 799 kJ/mol 495 kJ/mol 391 kJ/mol N-O O-H O-0 F-F 201 kJ/mol С-F 485 kJ/mol 1072 kJ/mol 463 kJ/mol C-CI 328 kJ/mol C=N 615 kJ/mol 146 kJ/mol C-S 259 kJ/mol N=N 418 kJ/mol 155 kJ/mol Cl-CI 242 kJ/mol N=N 941 kJ/mol C=N 891 kJ/mol Estimate the enthalpy change (A Hrxn) of the following reaction for 2 moles of Cl2 using the bond energies above. H-H + CI-CI → H-CI + H-CI kJ

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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