Chemistry / Unit 7 Chem 1233 short lesson, about 20 seconds
Avogadro's Law: Volume and Amount
Captions available
The idea
At constant temperature and pressure, a gas's volume is directly proportional to its number of moles.
In practice
Pumping more air into a flexible balloon at constant pressure and temperature increases its volume in direct proportion to the added moles.
Where people slip
Volume tracks the mole count directly here — molecule identity plays no role, since equal moles of any gas occupy equal volume.
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