In general, real gases behave most ideally at temperatures and pressures.
The behavior of real gases can be described using the van der Waals equation [P + (n2a/V2)](V-nb) = nRT
The values of a and b are given below for the two real gases methane and oxygen.
The gas in which deviations from ideal behavior due to intermolecular forces are expected to be the largest is .
The gas that would be expected to behave most like an ideal gas at high pressures is .
gas a (L2atm/mol2) b (L/mol)
CH4 2.25 4.28×10-2
O2 1.36 3.18×10-2
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In general, real gases behave most ideally at temperatures and pressures.
The behavior...
The behavior...
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