Why all adsorptions are exothermic in nature ?

Explanation

### Step-by-Step Text Solution:

**Step 1: Understanding Adsorption**
- Adsorption is the process in which atoms, ions, or molecules from a gas, liquid, or dissolved solid adhere to a surface of a solid or liquid (known as the adsorbent).

**Step 2: Attraction Forces**
- The primary reason for adsorption is the attractive forces between the adsorbate (the substance being adsorbed) and the adsorbent. These forces can be due to van der Waals forces, dipole-dipole interactions, hydrogen bonding, or chemical bonding.

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