Q.

The graph of compressibility factor (Z) vs P for one mole of a real gas is plotted at constant temperature 273 K. If the slope of the graph at very high pressure (dZdp) is 110atm1, the volume of one molecule of real gas in cm3 is x×1022. Find ‘x’.[ Take NA=6×1023 ].

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answer is 9.33.

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Detailed Solution

z=1+PbRT dzdp=110=bRT b=RT10=22.410=2.24 4×V×No=2.24 V=2.244×6×1023l =2.24×100024×1023  cm3 =9.33×1022cm3
 

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The graph of compressibility factor (Z) vs P for one mole of a real gas is plotted at constant temperature 273 K. If the slope of the graph at very high pressure (dZdp) is 110 atm−1, the volume of one molecule of real gas in cm3 is x×10−22. Find ‘x’.[ Take NA=6×1023 ].