Question

Positive deviation from ideal behaviour takes place because of

Answer 1

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Deviations from ideal behaviour are observed particularly at high pressures or low temperatures. When Z < 1, it is a negative deviation. It shows that the gas is more compressible than expected from ideal behaviour. When Z > 1, it is a positive deviation.

Answer 2

Positive deviation from ideal behaviour takes place because of

(A) Molecular interaction between atoms and PV/nRT > 1

(B) Molecular interaction between atoms and PV/nRT < 1

(C) Finite size of atoms and PV/nRT > 1

(D) Finite size of atoms and PV/nRT < 1

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