8. Assume you have the following gases all at 300 K: CO, SF6, H2S, Cl₂, He, and HBr. a) Rank them in order of increasing molecular speed (slowest to fastest). b) How do the molecules compare in terms of kinetic energy? c) Rank the molecules in order of an increasing rate of effusion. d) Rank the molecules in order of an increasing rate of diffusion. e) Considering Graham's law, how many times faster does He diffuse than SF6?