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Introductory Chemistry For Today
8th Edition
ISBN:9781285644561
Author:Seager
Publisher:Seager
Chapter8: Reaction Rates And Equilibrium
Section: Chapter Questions
Problem 8.75E
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**Problem 5.84 - Enhanced - with Feedback**

Use bond enthalpies in the table below to estimate ΔH for each of the following reactions:

---

**Average Bond Enthalpy (kJ/mol):**

| Bond | kJ/mol | Bond | kJ/mol |
|------|--------|------|--------|
| C—H  | 413    | N—H  | 391    |
| O—H  | 463    | F—F  | 155    |
| C≡C  | 839    | N—N  | 163    |
| O=O  | 495    | F—Cl | 253    |
| C—N  | 614    | N=O  | 201    |
| O—Cl | 203    | F—Br | 237    |
| C—O  | 358    | N=O  | 607    |
| O—I  | 234    | F—I  | 218    |
| C=O  | 799    | N—Br | 243    |
| O—H  | 463    | Br—Cl| 218    |
| C≡N  | 891    | N—I  | 150    |
| O—I  | 193    | Br—F | 193    |
| C—Cl | 328    | H—F  | 567    |
| I—I  | 151    |      |        |
| C—Br | 276    | H—Cl | 431    |
|      |        |      |        |
| C—I  | 240    | H—Br | 366    |
|      |        |      |        |
| H—I  | 299    |      |        |

---

**Part A**

\[ \text{Br—C—Br} + \text{Cl—Cl} \rightarrow \text{Br—C—Cl} + \text{Br—Cl} \]

Express your answer in kilojoules to three significant figures:

\[ \Delta H = \]

(Submit button and options to view previous or request answers)

**Note:** The solution is incorrect; you have 5 attempts remaining.

---

For clarity, explain the reaction equation indicating the bonds broken and formed, and use the values in the above table to calculate the
Transcribed Image Text:**Problem 5.84 - Enhanced - with Feedback** Use bond enthalpies in the table below to estimate ΔH for each of the following reactions: --- **Average Bond Enthalpy (kJ/mol):** | Bond | kJ/mol | Bond | kJ/mol | |------|--------|------|--------| | C—H | 413 | N—H | 391 | | O—H | 463 | F—F | 155 | | C≡C | 839 | N—N | 163 | | O=O | 495 | F—Cl | 253 | | C—N | 614 | N=O | 201 | | O—Cl | 203 | F—Br | 237 | | C—O | 358 | N=O | 607 | | O—I | 234 | F—I | 218 | | C=O | 799 | N—Br | 243 | | O—H | 463 | Br—Cl| 218 | | C≡N | 891 | N—I | 150 | | O—I | 193 | Br—F | 193 | | C—Cl | 328 | H—F | 567 | | I—I | 151 | | | | C—Br | 276 | H—Cl | 431 | | | | | | | C—I | 240 | H—Br | 366 | | | | | | | H—I | 299 | | | --- **Part A** \[ \text{Br—C—Br} + \text{Cl—Cl} \rightarrow \text{Br—C—Cl} + \text{Br—Cl} \] Express your answer in kilojoules to three significant figures: \[ \Delta H = \] (Submit button and options to view previous or request answers) **Note:** The solution is incorrect; you have 5 attempts remaining. --- For clarity, explain the reaction equation indicating the bonds broken and formed, and use the values in the above table to calculate the
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