Use the molar bond enthalpy data in the table to estimate the value of AHxn for the equation CCI, (g) + 2F,(g) → CF,(g) + 2 Cl,(g) The bonding in the molecules is shown. C-CI F-F + C- F-C- + F-F C-CI ↑
Types of Chemical Bonds
The attractive force which has the ability of holding various constituent elements like atoms, ions, molecules, etc. together in different chemical species is termed as a chemical bond. Chemical compounds are dependent on the strength of chemical bonds between its constituents. Stronger the chemical bond, more will be the stability in the chemical compounds. Hence, it can be said that bonding defines the stability of chemical compounds.
Polarizability In Organic Chemistry
Polarizability refers to the ability of an atom/molecule to distort the electron cloud of neighboring species towards itself and the process of distortion of electron cloud is known as polarization.
Coordinate Covalent Bonds
A coordinate covalent bond is also known as a dative bond, which is a type of covalent bond. It is formed between two atoms, where the two electrons required to form the bond come from the same atom resulting in a semi-polar bond. The study of coordinate covalent bond or dative bond is important to know about the special type of bonding that leads to different properties. Since covalent compounds are non-polar whereas coordinate bonds results always in polar compounds due to charge separation.
![**General Chemistry 4th Edition**
**McQuarrie • Rock • Gallogly**
**University Science Books**
Presented by Macmillan Learning
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**Use the Molar Bond Enthalpy Data to Estimate the Reaction Enthalpy Change**
In this exercise, we will estimate the change in enthalpy (\( \Delta H_{\text{rxn}} \)) for a given chemical reaction using average molar bond enthalpies. The reaction in question is:
\[ \text{CCl}_4(g) + 2 \text{F}_2(g) \rightarrow \text{CF}_4(g) + 2 \text{Cl}_2(g) \]
The bonding in the molecules is depicted as:
- \(\text{CCl}_4\) structure: Central carbon atom bonded to four chlorine (Cl) atoms.
- \(\text{F}_2\) structure: Two fluorine (F) atoms bonded together.
- \(\text{CF}_4\) structure: Central carbon atom bonded to four fluorine (F) atoms.
- \(\text{Cl}_2\) structure: Two chlorine (Cl) atoms bonded together.
**Average Molar Bond Enthalpies \((H_{\text{bond}})\):**
| **Bond** | **kJ · mol\(^{-1}\)** | **Bond** | **kJ · mol\(^{-1}\)** |
|----------|-----------------------|----------|-----------------------|
| O–H | 464 | C≡N | 890 |
| O–O | 142 | N–H | 390 |
| C–O | 351 | N–N | 159 |
| O=O | 502 | N≡N | 418 |
| C=O | 730 | N≡N | 945 |
| C–C | 347 | F–F | 155 |
| C=C | 615 | Cl–Cl | 243 |
| C≡C | 811 | Br–Br | 192 |
| C–H | 414 | H–H | 435 |
| C–F | 439 | H–F | 565 |](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1cab08ae-8e5c-4fa2-a89b-725536e38ab3%2F625898e1-f9ac-459e-85b8-f356a1017d62%2F1777h5_processed.png&w=3840&q=75)
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