LECTURE PHYSICAL CHEMISTRY 3rd EDITION ROBERT G. MORTIMER

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1.3. Real Gases
Most gases obey the ideal gas law to a good
approximation when near room
temperature and at a moderate pressure.
At higher pressures one might need a
better description. Several equations of
state have been devised for this purpose.
The van der Waal equation of state is:
The symbols a and b represent constant
parameters that have different values for
different substances.
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