Gas Laws: Boyle's Law and Charles's Law
For
most gases and under a wide range of conditions, the ratio of
volume to temperature, for a gas at constant pressure, is
constant; V/T = constant. This is known as Charles'
Law.
For
most gases and under a wide range of conditions, the product of
pressure and volume, for a constant temperature, is constant; PV=
constant. This is known as Boyle's Law.
Charles'
and Boyle's Law may be combined as PV/T = constant or PV/T =
PoVo/To.
For constant volume:
For constant temperature:
This is known as Boyle's Law.
For constant pressure:
This is known as Charles' Law.
Combining these, we have
This is known as the ideal gas law.
A mole of gas molecules is Avagadro's number NA of molecules,
R = universal gas constant
R = 8.314 J/mole-K
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