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CHEMISTRY 101 – Root mean square velocity of gas molecules

According to kinetic molecular theory, the average kinetic energy of a gas is directly proportional to the temperature in Kelvin. If we have a mixture of gases with different molar masses at a given temperature, for the average kinetic energy of each gas to be the same, lighter gas particles will travel faster on average. […]

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18. Physics | KTG | Different Molecular Speeds for a Gas Molecule | by Ashish Arora

here we are going to discuss different molecular speeds for a gas molecules. you know that gas molecules are in random brownian motion. so for various kind of mathematical analysis. some standard different molecular speeds are defined. and, there are vast range of speeds so with which gas molecules move. here we are going to […]

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A new map for a birthplace of stars — the Orion A molecular cloud

[Shuo Kong speaking] This Orion-A molecular cloud is the closest massive star forming region. This molecular cloud is about 400 parsecs from us, which is about twelve hundred light years. So what makes our survey different is, we combine data from two very different telescopes. We’re looking at the cloud, the gas cloud, at different […]

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Graham’s law of diffusion | Respiratory system physiology | NCLEX-RN | Khan Academy

Welcome to a new planet. This is actually a planet I’m going to call Planet Graham. And you can already see the blue alien on this planet. And the reason I want to call it Planet Graham, I’ll be honest, is because we’re going to talk about Graham’s law. And I thought it would be […]

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Alveolar gas equation – part 2 | Respiratory system physiology | NCLEX-RN | Khan Academy

In our last video, we were kind of getting to the idea that there’s a partial pressure of oxygen that is a little bit lower in the bronchial tree than you would expect by just comparing it to the air that you breathe in. And the reason is because we said, well, of course you […]

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