Generally Adsorption is an endothermic process. true/false

Explanation

To determine whether the statement "Generally, adsorption is an endothermic process" is true or false, we can analyze the concept of adsorption and its thermodynamics.

### Step-by-Step Solution:

1. **Understanding Adsorption**:
- Adsorption is the process where molecules (adsorbates) adhere to the surface of a solid or liquid (adsorbent). This is a surface phenomenon, meaning it occurs at the interface rather than throughout the bulk of the material.

2. **Thermodynamics of Adsorption**:
- To classify adsorption as endothermic or exothermic, we need to consider the energy changes involved. In an endothermic process, energy is absorbed from the surroundings, while in an exothermic process, energy is released.

3. **Energy Changes in Adsorption**:
- During adsorption, when adsorbate molecules come into contact with the adsorbent, they form interactions (such as van der Waals forces or chemical bonds). The formation of these interactions typically releases energy.

4. **Conclusion on Adsorption**:
- Since adsorption involves the release of energy due to the formation of bonds between the adsorbate and adsorbent, it is generally considered an exothermic process, not endothermic.

5. **Final Answer**:
- Therefore, the statement "Generally, adsorption is an endothermic process" is **False**.