For adsorption, the thermodynamic requirement is that

Options

A. `Delta H` must be negative
B. `Delta S` must be negative
C. `Delta G` must be negative
D. `Delta H,DeltaS and Delta G` must be negative

Explanation

To determine the thermodynamic requirements for adsorption, we can analyze the Gibbs free energy change (ΔG), enthalpy change (ΔH), and entropy change (ΔS) involved in the process. Here’s a step-by-step breakdown of the solution:

### Step 1: Understand the Gibbs Free Energy Equation
The Gibbs free energy change is given by the equation:
\[ \Delta G = \Delta H - T \Delta S \]
Where:
- \( \Delta G \) = Gibbs free energy change
- \( \Delta H \) = Enthalpy change
...