Last Activity: 14 Years ago
TB can be derived from the va n der Waals equation of state for a real gas,
In order to do that, we express the van der Waals equation as
So long as b/Vm < 1, we can expand the first term inside the brackets according to
(1 – x)-1 = 1 + x + x2 + ...
which gives
Obviously the virial coefficient B is given by
At the Boyle Temperature B = 0, and so
(Tc = 8a/27Rb is the critical temperature of the gas.)
Thus, the Boyle temperature may be found for any gas for which the critical temperature has been determined.
Last Activity: 14 Years ago
So does that mean its 1 for low pressures and greater than 1 for high pressures ?
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