At , hydrogen () gas exhibits a compressibility factor even at relatively low pressures. This is mat — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

For extremely small, non-polar molecules like $H_2$ and $He$, intermolecular attractions are virtually zero ($a \approx 0$). The van der Waals equation simplifies to $P(V-b)=RT$, yielding $Z = 1 + Pb/RT$.