JEE Main & Advanced Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank Free energy and work function

  • question_answer
    The dependence of Gibbs free energy on pressure for an isothermal process of an ideal gas is given by [MP PET 1996]

    A)                 \[\Delta {{G}_{T}}=nRT\,\ln \,\frac{{{P}_{2}}}{{{P}_{1}}}\]            

    B)                 \[\Delta {{G}_{T}}=nRT\,\ln \frac{{{V}_{2}}}{{{V}_{1}}}\]

    C)                 \[\Delta {{G}_{T}}=nRT\,\log \,\frac{{{P}_{1}}}{{{P}_{2}}}\]          

    D)                 \[\Delta {{G}_{T}}=nRT\,\log \,\frac{{{V}_{2}}}{{{V}_{1}}}\]

    Correct Answer: A

    Solution :

              \[\Delta {{G}_{T}}=nRT\,\ln \frac{{{P}_{2}}}{{{P}_{1}}}\].


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