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The ideal gas equation is PV = nRT.Since...

The ideal gas equation is PV = nRT.Since none of the gas in universe is ideal one and deviation are noticed from ideal gas nature. The deviation from ideal gas nature has been explained in terms of compressibility factor=`(Z=(PV)/(nNT))` Usually when Z > 1, repulsive force among molecules predominates When Z < 1, attractive force predominates. However, almost all the gases show ideal gas behaviour within Boyle's temperatures range. The numerical value of Z for 1 mol of gas at critical condition is 3/8.
The gas which always shows predominative repulsive forces :

A

He

B

Ne

C

Ar

D

Kr

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The correct Answer is:
A
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