We’re being asked to arrange the gases in order of decreasing the average molecular speed at 315 K.
Recall that the speed of a gas is related to its mass. The greater the molar mass of a gas, then the lower is its molecular speed.
So for each gas, we will calculate their molar mass and arrange their average molecular speed based on molar mass.
Place the following gases in order of decreasing average molecular speed at 315 K : CO, SF6, H2S, Cl2, HBr.
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Kinetic Molecular Theory concept. You can view video lessons to learn Kinetic Molecular Theory. Or if you need more Kinetic Molecular Theory practice, you can also practice Kinetic Molecular Theory practice problems.
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Based on our data, we think this problem is relevant for Professor Cole & Geng & Lovander's class at IOWA.