Calculate critical temperature and critical pressure of oxygen if the values of the van der Waal's constants a and b are `1.32 dm^(6) "bar" mol^(-2)` and `0.0312 dm^(3) mol^(-1)` respectively.

Explanation

To calculate the critical temperature (Tc) and critical pressure (Pc) of oxygen using the van der Waals constants \( a \) and \( b \), we can follow these steps:

### Step 1: Identify the given values
- Van der Waals constant \( a = 1.32 \, \text{dm}^6 \, \text{bar} \, \text{mol}^{-2} \)
- Van der Waals constant \( b = 0.0312 \, \text{dm}^3 \, \text{mol}^{-1} \)
- Gas constant \( R = 0.0821 \, \text{dm}^3 \, \text{bar} \, \text{mol}^{-1} \, \text{K}^{-1} \)

### Step 2: Calculate the critical temperature (Tc)
...