The intermolecular interaction that is dependent on the inverse cube of distance between the molecules is
The intermolecular interaction that is dependent on the inverse cube of distance between the molecules is
A
ion - dipole interaction
B
London force
C
hydrogen bond
D
ion - ion interaction
Text Solution
AI Generated Solution
The correct Answer is:
To solve the question regarding the intermolecular interaction that is dependent on the inverse cube of distance between the molecules, we can break it down step by step:
### Step 1: Understand the Types of Intermolecular Interactions
There are several types of intermolecular interactions, including:
- Ion-dipole interactions
- Dipole-dipole interactions
- Hydrogen bonds
- London dispersion forces (also known as dispersion forces)
### Step 2: Analyze Each Interaction
1. **Ion-Dipole Interaction**: This occurs between an ion and a polar molecule. The force can be described using Coulomb's law, which indicates that the force is inversely proportional to the cube of the distance (1/r³) between the ion and the dipole.
2. **Dipole-Dipole Interaction**: This occurs between two polar molecules. The strength of this interaction is also inversely proportional to the cube of the distance (1/r³) between the dipoles.
3. **Hydrogen Bonding**: This is a specific type of dipole-dipole interaction that occurs when hydrogen is bonded to a highly electronegative atom (like O, N, or F). The interaction strength is similar to dipole-dipole interactions, also showing an inverse cube relationship.
4. **London Dispersion Forces**: These are weak forces that arise from temporary dipoles in molecules. They are inversely proportional to the sixth power of the distance (1/r⁶), making them much weaker than the other interactions.
### Step 3: Identify the Correct Interaction
From the analysis:
- Both ion-dipole and dipole-dipole interactions depend on the inverse cube of the distance (1/r³).
- London dispersion forces depend on the inverse sixth power of the distance (1/r⁶).
### Conclusion
Since the question asks for the intermolecular interaction that depends on the inverse cube of distance, both ion-dipole and dipole-dipole interactions fit this description. However, if we consider the context of the question and typical references, the most commonly recognized interaction that is often highlighted in this context is the **dipole-dipole interaction**.
### Final Answer
The intermolecular interaction that is dependent on the inverse cube of distance between the molecules is **Dipole-Dipole Interaction**.
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