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NEET Chemistry Thermodynamics / रासायनिक उष्मागतिकी Question Bank Self Evaluation Test - Thermodynamics

  • question_answer
    For the reaction taking place at certain temperature \[N{{H}_{2}}COON{{H}_{4}}(s)\rightleftharpoons 2N{{H}_{3}}(g)+C{{O}_{2}}(g),\] if equilibrium pressure is 3X bar then \[{{\Delta }_{\text{r}}}G{}^\circ \] would be                 

    A) \[-RT\] ln \[9-3RT\] ln X

    B) RT ln \[4-3RT\] ln X

    C) \[-3RT\] ln X

    D) None of these

    Correct Answer: D

    Solution :

    [d] \[\Delta {{G}^{{}^\circ }}=-RT\] ln \[{{K}_{p}};{{K}_{p}}={{\left( 2x \right)}^{2}}X=4{{x}^{3}}\] \[\Delta G{}^\circ =-RT\] In \[\left( 4{{X}^{3}} \right)\] \[\Delta G{}^\circ =-RT\] In \[4-3RT\] In X


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