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The
laws which govern the behaviour of a perfect gas due to the
variation in its pressure, temperature and volume are known
as gas laws.
Three
are three basic gas laws.
1.
Boyle’s law
2.
Charle’s law
3.
Gay-Lussac law
Boyle’s
law:
It states that when the temperature is remains constant; the
volume of a perfect is inversely proportional to its
absolute pressure. i.e.
V α 1/P
(T is constant)
Or PV =
Constant
0r P1V1
= P2V2 (when a gas changes its state
from 1 to 2 at constant temperature)
Charle’s law:
The volume of a perfect gas is directly proportional to its
absolute temperature, if the pressure remains constant. i.e.
V α T
or V/T=Constant
Or V1/T1
= V2/T2 (when a gas changes its state
from 1 to 2 at constant pressure)
Gay-Lussac
law:
The pressure of the gas is directly proportional to its
temperature if the volume remains constant. i.e.
P α T
or P/T = Constant
Or P1/T1
= P2/T2 (when a gas changes its state
from 1 to 2 at constant volume)
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