Problem: Is water vapor more or less dense than N2 under the same conditions of temperature and pressure?

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We are asked if water vapor more or less dense than N2 under the same conditions of temperature and pressure.


Molar mass N2 = 28.02 g/mol

Molar mass H2O = 18.02 g/mol


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Is water vapor more or less dense than N2 under the same conditions of temperature and pressure?

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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 The Ideal Gas Law: Density concept. You can view video lessons to learn The Ideal Gas Law: Density. Or if you need more The Ideal Gas Law: Density practice, you can also practice The Ideal Gas Law: Density practice problems.

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Based on our data, we think this problem is relevant for Professor Dixon's class at UCF.