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Discussion :: Chemical Engineering Thermodynamics

  1. Helmholtz free energy (A) is defined as

    2. A.

     A = H - TS
    B.

     A = E - TS
    C.

     A = H + TS
    D.

     None of these

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    Answer : Option B

    Explanation :

    Helmholtz free energy :
    A=U−TSdA=−WR
    So, the decrease in Helmholtz energy denotes maximum work done in an reversible process under isothermal conditions.

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