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Define compressibility factor Z ....

Define compressibility factor Z .

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Compressibility factor z : The deviation of real gases from ideal behaviour is measured in terms of a ratio of PV to nRT . This is termed as compressibility factor.
`Z = (PV)/(nRT)`
For ideal gases PV = nRT, hence the compressibility factor, Z = 1 at all temperatures and pressures .
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