MEDIUMMCQ SINGLENEET ChemistryPhysical ChemistryGaseous stateCompressibility factor

Positive deviation from ideal behaviour takes place because of

A.molecular interaction between atom and✓ Correct

B.molecular interaction between atom and

C.finite size of atoms and PV/nRT> 1

D.finite size of atoms and PV/nRT< 1

Explanation

For positive deviation Z>1, i.e., the condition when repulsive force predominates. Also at high pressure, volume is small and b cannot be neglected. At very high pressure, 2 / a V is neglected

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