Dispersion forces are weak attractive forces are important only over extremely short distances because they vary as

Options

A. `1//d^(6)`
B. `1//d^(4)`
C. `1//d^(7)`
D. `1//d^(5)`

Answer

C

Explanation

Interaction energy `("force" xx "distance")` is inversely proportional to `1//d^(6)`. These forces are present between all types of molecules or atoms in condensed phases but are weak for small molecules.