Practice: If H2 has an effusion rate that is 3.72 times faster than a gas, what is the identity of the unknown gas?
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| Pressure Units | 6 mins | 0 completed | Learn |
| The Ideal Gas Law | 19 mins | 0 completed | Learn Summary |
| The Ideal Gas Law Derivations | 6 mins | 0 completed | Learn |
| The Ideal Gas Law Applications | 7 mins | 0 completed | Learn |
| Chemistry Gas Laws | 16 mins | 0 completed | Learn |
| Chemistry Gas Laws: Combined Gas Law | 12 mins | 0 completed | Learn |
| Mole Fraction | 6 mins | 0 completed | Learn |
| Partial Pressure | 19 mins | 0 completed | Learn Summary |
| The Ideal Gas Law: Molar Mass | 19 mins | 0 completed | Learn |
| The Ideal Gas Law: Density | 16 mins | 0 completed | Learn Summary |
| Gas Stoichiometry | 7 mins | 0 completed | Learn |
| Standard Temperature and Pressure | 14 mins | 0 completed | Learn |
| Effusion | 13 mins | 0 completed | Learn Summary |
| Root Mean Square Speed | 9 mins | 0 completed | Learn Summary |
| Kinetic Energy of Gases | 5 mins | 0 completed | Learn |
| Maxwell-Boltzmann Distribution | 8 mins | 0 completed | Learn |
| Velocity Distributions | 5 mins | 0 completed | Learn |
| Kinetic Molecular Theory | 7 mins | 0 completed | Learn |
| Van der Waals Equation | 9 mins | 0 completed | Learn |
| Additional Guides |
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| Boyle's Law (IGNORE) |
| Charles Law (IGNORE) |
| Ideal Gas Law (IGNORE) |
Effusion is the escaping of gas molecules or atoms through a pinhole.
Concept #1: Effusion
Concept #2: Rate of Effusion
Example #1: Rank the following in order of increasing rate of effusion.
O2 PF5 CO2 Xe
Concept #3: Graham’s Law of Effusion
Example #2: Calculate the ratio of the effusion rates of helium to methane (CH4).
Practice: If H2 has an effusion rate that is 3.72 times faster than a gas, what is the identity of the unknown gas?
Practice: How many times faster will H2 gas pass through a pinhole into an area of vacuum than O2 gas?
Practice: It takes 6.3 minutes for 2.3 L argon to effuse through a semipermeable membrane. How long would it take for 2.3 L of chlorine gas to effuse under similar conditions?
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