The van der Waals constant (a, b) for gases `A`, `B`, and `C` are as follows : A(405.3,0.027), B(1215,0.03), C(607,0.032). Which gas has the most ideal behavior around `STP`?

Options

A. `A`
B. `B`
C. `C`
D. None

Explanation

To determine which gas has the most ideal behavior around Standard Temperature and Pressure (STP), we need to evaluate the critical temperature of each gas using the van der Waals constants provided. The critical temperature (Tc) can be calculated using the formula:

\[ T_c = \frac{8a}{27Rb} \]

where:
- \( a \) is the van der Waals constant for attraction,
- \( b \) is the van der Waals constant for volume,
- \( R \) is the universal gas constant (0.0821 L·atm/(K·mol)).
...