In this problem you will use MATLAB to calculate pressure at a range of molar volumes using the van der Waals equation of state.

Cylinders of compressed gas are typically filled to a pressure of $200$ bar. For oxygen, what would be the molar volume at this pressure at $25C$ based on the van der Waals equation? How does this value compare to what you calculate using the Ideal Gas Law, instead?

$($Hint: make a plot $p_{vdW}vs.V_m$ in steps of $0\mathrm{.}001\frac{L}{m}ol$ from $0\mathrm{.}1\frac{L}{m}ol$ to $25\frac{L}{m}ol$ and find the value of $V_m$ that yields the pressure closest to $\frac{200}{b}ar)$