Critical temperatures for A, B, C and D gases are `25^(@)C, 10^(@)C, -80^(@)C` and `15^(@)C` respectively. Which gas will be liquefied more easily ?

Options

A. A
B. B
C. C
D. D

Explanation

To determine which gas will be liquefied more easily based on their critical temperatures, we can follow these steps:

### Step 1: Understand Critical Temperature
The critical temperature (Tc) is the temperature above which a gas cannot be liquefied, regardless of the pressure applied. The higher the critical temperature, the easier it is to liquefy the gas.

### Step 2: List the Critical Temperatures
We have the following critical temperatures for the gases:
- Gas A: 25°C
- Gas B: 10°C
- Gas C: -80°C
- Gas D: 15°C

### Step 3: Compare the Critical Temperatures
Now, we will compare the critical temperatures of the four gases:
- Gas A: 25°C (highest)
- Gas B: 10°C
- Gas C: -80°C (lowest)
- Gas D: 15°C

### Step 4: Identify the Gas with the Highest Critical Temperature
From the comparison:
- Gas A has the highest critical temperature (25°C).
- Gas B is next with 10°C.
- Gas D follows with 15°C.
- Gas C has the lowest critical temperature at -80°C.

### Step 5: Conclusion
Since gas A has the highest critical temperature, it will be liquefied more easily compared to the other gases.

**Final Answer:** Gas A will be liquefied more easily.