Avogadro’s Law

Definition: Avogadro’s Law describes the relationship between the number of moles (n) and volume (V) while temperature (T) and pressure (P) remain constant.

Relation: n and V are directly proportional so as “n” increases, volume increases.

n α V

Equation:

A1

Example:

A4

Problem: If a the volume of 2 mol of helium gas is 44.8L, what is the volume of 0.5 mols of the same gas?

GIVEN:

n1 = 2 mol
V1 = 44.8L
V2 = ?
n2 = 0.5 mol

CGL3

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