Out of the following gases which will be adsorbed more readily on the surface of charcoal :
`NH_3 gt CO_2 gt O_2`

Explanation

To determine which gas will be adsorbed more readily on the surface of charcoal among NH3, CO2, and O2, we can follow these steps:

### Step 1: Understand Adsorption
Adsorption is the process where molecules from a gas or liquid adhere to the surface of a solid. The extent of adsorption depends on various factors, including the critical temperature of the gases involved.

### Step 2: Identify Critical Temperatures
The critical temperature of a gas is the temperature above which it cannot be liquefied, regardless of the pressure applied. Gases with higher critical temperatures are generally more easily adsorbed because they are more likely to interact with the surface of the adsorbent.

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