the interaction energy of London force is inversely proportional to sixth power of the distance between two interaction particles but their mahnitude depends upon

Options

A. charge of interacting particles
B. mass of interacting particles
C. polarisability of interactig particles
D. strength of permanent dipoles in the particles

Explanation

To solve the question regarding the interaction energy of London forces and what it depends upon, we can break it down into clear steps:

### Step 1: Understand the Interaction Energy
The interaction energy (IE) of London forces is given to be inversely proportional to the sixth power of the distance (D) between two interacting particles. This can be expressed mathematically as:
\[ IE \propto \frac{1}{D^6} \]

### Step 2: Identify the Nature of London Forces
London dispersion forces are a type of van der Waals force that arise due to the temporary dipoles that occur when electron clouds around atoms or molecules fluctuate. These forces are significant in nonpolar molecules and are generally weak but can become stronger with larger molecules.

### Step 3: Consider the Size of the Molecules
The magnitude of London forces depends on the size of the interacting particles. Larger molecules or ions have larger electron clouds, which can be more easily distorted.

### Step 4: Relate Size to Polarizability
The ability of an electron cloud to be distorted is referred to as polarizability. Larger molecules have greater polarizability because their electron clouds are more spread out and can be influenced more easily by neighboring charges or dipoles.

### Step 5: Conclusion
Thus, the magnitude of the London dispersion forces depends on the polarizability of the interacting particles. The larger the polarizability, the stronger the London dispersion forces.

### Final Answer
The magnitude of the London dispersion forces depends upon the polarizability of the interacting particles.

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