For a gas-solid system, classical adsorption isotherm is applicable. If mg of solid adsorb xg of gas at pressure p, then which of the following plots will be a straight line?

Options

A. `x/m vs.p`
B. `P/(x//m)Vs.`
C. `logx_m Vs.`
D. `logx_M Vs.`

Explanation

To determine which plot will yield a straight line for a gas-solid adsorption system, we can analyze the relationship between the amount of gas adsorbed and the pressure using the classical adsorption isotherm.

### Step-by-Step Solution:

1. **Understanding the Adsorption Isotherm**:
The classical adsorption isotherm can be expressed as:
\[
\frac{x}{m} = k \cdot p^{\frac{1}{n}}
...