Problem: Why do two ideal gases thoroughly mix when combined? What drives the mixing?

FREE Expert Solution

We’re asked to explain why two ideal gases thoroughly mix when combined and to determine what drives the mixing.


Recall that according to the theory “likes” dissolving “likes”, substances with similar polarity will mix or dissolve

Therefore, gases with similar polarities can successfully mix. 

  • Polarity indicates the type of intermolecular forces present between these substances.
    • Polar molecules → mostly dipole-dipole interactions, and some dispersion forces
    • non-polar molecules dispersion forces only


Also recall that for an ideal gas, there is no attraction or repulsion between the particles. This means that there are no intermolecular forces present in an ideal gas


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Why do two ideal gases thoroughly mix when combined? What drives the mixing?

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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 Solutions, Molarity and Intermolecular Forces concept. You can view video lessons to learn Solutions, Molarity and Intermolecular Forces. Or if you need more Solutions, Molarity and Intermolecular Forces practice, you can also practice Solutions, Molarity and Intermolecular Forces practice problems.

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Based on our data, we think this problem is relevant for Professor Ruggles' class at VERMONT.