AP Chemistry
3.6 Deviation from Ideal Gas Law
3.5 Kinetic Molecular Theory
3.1 Intermolecular and Interparticle Forces
A student measures the pressure and volume of separate \(1.00\text{ mol}\) samples of \(\text{CH}_4\text{(g)}\) and \(\text{CF}_4\text{(g)}\) in identical rigid \(2.00\text{ L}\) containers at \(200\text{ K}\). The student observes that for both gases, the compressibility ratio \(\dfrac{PV}{nRT} < 1.00\), but the ratio for \(\text{CF}_4\text{(g)}\) is significantly lower than that for \(\text{CH}_4\text{(g)}\). Which of the following best explains why \(\text{CF}_4\text{(g)}\) exhibits a greater negative deviation from ideal gas behavior than \(\text{CH}_4\text{(g)}\) under these conditions?
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