The degree of association is given by the expression :

Options

A. `beta=(1-i)/(1/n-1)`
B. `beta=1+(n-1)i`
C. `beta=(i+1)/(1/n-1)`
D. `beta=(i-1)/(1/n-1)`

Explanation

To derive the expression for the degree of association, we need to understand the concepts of association and dissociation in solutions. Here’s a step-by-step breakdown of how to express the degree of association mathematically:

### Step 1: Define the Degree of Association
The degree of association (α) refers to the fraction of solute molecules that associate to form larger aggregates. If we start with 'n' molecules of a solute, and 'x' molecules associate, then the degree of association can be defined as:

\[ \alpha = \frac{x}{n} \]
...