What is the relation between the activity of a gaseous component and its partial pressure ?

Explanation

To find the relation between the activity of a gaseous component and its partial pressure, we can follow these steps:

### Step 1: Understand the Concept of Activity
Activity (a) is a measure of the effective concentration of a species in a mixture. For gases, the activity can be related to its partial pressure.

### Step 2: Recall the Ideal Gas Law
The ideal gas law is given by the equation:
\[ PV = nRT \]
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