Problem: Consider a 1.0-L sample of helium gas and a 1.0-L sample of argon gas, both at room temperature and atmospheric pressure.Do the atoms in the helium sample have the same average kinetic energy as the atoms in the argon sample?

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Recall that average kinetic energy is directly proportional to absolute temperature.

  • same temperature → 
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Problem Details

Consider a 1.0-L sample of helium gas and a 1.0-L sample of argon gas, both at room temperature and atmospheric pressure.

Do the atoms in the helium sample have the same average kinetic energy as the atoms in the argon sample?


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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.