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In general, real gases behave most ideally at _____(high/low) temperatures and _

ID: 727327 • Letter: I

Question

In general, real gases behave most ideally at _____(high/low) temperatures and ____ (high/low) pressures...

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 carbon dioxide and xenon. The gas in which deviations from ideal behavior due to intermolecular forces are expected to be the smallest is carbon dioxide xenon. The gas that would be expected to behave most like an ideal gas at high pressures is carbon dioxide xenon.

Explanation / Answer

real gases behave most ideally at high temperatures and low pressures CO2 has smaller deviations from ideal behavior than Xenon