Problem: Consider two separate 1 L gas samples, both at the same temperature and pressure. The two gases have different molar masses. Which is true?  1. The particles in both gas samples have different average kinetic energies. 2. You would need more information to be able to compare the average kinetic energies of these two gas samples. 3. The particles in both gas samples have the same average kinetic energies. 

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Problem Details

Consider two separate 1 L gas samples, both at the same temperature and pressure. The two gases have different molar masses. Which is true? 

1. The particles in both gas samples have different average kinetic energies.

2. You would need more information to be able to compare the average kinetic energies of these two gas samples.

3. The particles in both gas samples have the same average kinetic energies. 

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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 Gunasekera's class at UIUC.