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The volume of 2 moles of SO(2) at 30^(@)...

The volume of 2 moles of `SO_(2)` at `30^(@)C` and 55 atm pressure is 680 mL. what is the value of compressibility factor of the gas? What is the nature of deviation of the gas from ideal behaviour?

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`Z=(PV)/(nRT)=(55xx680xx10^(-3))/(2xx0.0821xx303)=0.7517`
As `Z lt 1`, the gas shows negative deviation from ideal behaviour.
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