Ideal gas law
Ideal Gas Law
The Ideal Gas Law was first written in 1834 by Emil Clapeyron.
Following relations can be expressed as constants (k1,
k2...k6) representing six different values.
In order to make one equation that contain them all
i.e. P,V,T and n, we can multiply them all.
V/T = k2
P/T = k3
V/n = k4
P/n = k5
1/nT = 1/k6
P3V3 / n3T3
= k1k2k3 k4k5 / k6
An expression in which on the right side of the equation can be
presented as a single constant - R - the gas constant. Now we
have a single equation representing the relationship between
pressure(P), volume(V), mole(n) and temperature(T).
Taking the cube root we get:
PV/nT = (k1k2k3k4 k5
PV/nT = R
or as presented in CHEMIX
PV = nRT
ideal gas law.
Example : A 2 mol sample of oxygen gas O2 has a volume of 10.0 L at 300
Calculate the pressure.
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