Chemistry / Unit 7 Chem 1236 short lesson, about 20 seconds
The Ideal Gas Law
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The idea
The ideal gas law combines pressure, volume, moles, and kelvin temperature into one equation, PV equals nRT, with R a fixed constant.
In practice
Given any three of pressure, volume, moles, and temperature, the equation solves directly for the fourth.
Where people slip
R's numerical value depends on which pressure and volume units are chosen — the equation itself never changes.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
- 1239Solving Problems with the Ideal Gas Law
- 1243The Combined Gas Law
- 1246Ideal Gas Assumptions
- 1254Standard Molar Volume, Computed Under Both STP Conventions
- 1259Gas Density from the Ideal Gas Law
- 1266Dalton's Law of Partial Pressures
- 1272Calculating Partial Pressures in a Gas Mixture
- 1286Gas Stoichiometry from Reaction Volumes
- 1308Kinetic-Molecular Theory's Core Postulates
- 1339The van der Waals Equation
- 1343Calculating Pressure with the van der Waals Equation
- 1350Capstone: From Manometer Reading to Real-Gas Correction
- 1576Calculating Osmotic Pressure
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