First slide
Deviation from ideal gas behaviour

A gas at 350 K and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is


Videal =V,Vreal =V-0.2 V=0.8 V Z=Vreal Videal =0.8  If value of Z<1 then attractive forces are dominant. 

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