Gases posses characteristic critical temperature which depends upon the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.
`{:("Gases",H_(2),He,O_(2),N_(2)),("Critical temperature in kelvin",33.2,5.3,154.3,126):}`
From the above data what would be the order of liquefaction of these gases ? Start writing the order from the gas liquefying first

Options

A. `H_(2), He, O_(2), N_(2)`
B. `He, O_(2), H_(2), N_(2)`
C. `N_(2), O_(2), He, H_(2)`
D. `O_(2), N_(2), H_(2), He`

Explanation

To determine the order of liquefaction of the given gases based on their critical temperatures, we can follow these steps:

### Step 1: Understand Critical Temperature
- **Definition**: The critical temperature of a gas is the temperature above which it cannot be liquefied, regardless of the pressure applied.
- **Importance**: Gases with higher critical temperatures can be liquefied more easily compared to those with lower critical temperatures.

### Step 2: List the Gases and Their Critical Temperatures
- **Gases**: H₂, He, O₂, N₂
- **Critical Temperatures (in Kelvin)**:
- H₂: 33.2 K
- He: 5.3 K
- O₂: 154.3 K
- N₂: 126 K

### Step 3: Compare the Critical Temperatures
- **Order of Critical Temperatures** (from highest to lowest):
1. O₂: 154.3 K
2. N₂: 126 K
3. H₂: 33.2 K
4. He: 5.3 K

### Step 4: Determine the Order of Liquefaction
- **Liquefaction Order**: Since gases with higher critical temperatures liquefy first, the order of liquefaction from first to last is:
1. O₂ (highest critical temperature)
2. N₂
3. H₂
4. He (lowest critical temperature)

### Conclusion
- **Final Order of Liquefaction**: O₂ > N₂ > H₂ > He