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Discussion :: Chemical Engineering Thermodynamics

  1. The compressibility factor of a gas is given by (where, V₁ = actual volume of the gas V₂ = gas volume predicted by ideal gas law )

    2. A.

     V₁/V₂
    B.

     V₂/V₁
    C.

     V₁-V₂
    D.

     V₁.V₂

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    Answer : Option A

    Explanation :

    The compressibility factor is given by Z=PV1RT.   If at the same temperature and pressure if the same gas exists as ideal gas than we can write:
    Z=1=PV2RT⇒RTP=V2So,Z=V1V2.

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