BotanyFor a certain reaction, ΔH0 and ΔS0 respectively are 400 KJ & 200 J/mol/K. The process is non-spontaneous at

For a certain reaction, ΔH0 and ΔS0 respectively are 400 KJ & 200 J/mol/K. The process is non-spontaneous at

  1. A

    2100K

  2. B

    2010K

  3. C

    1990K

  4. D

    2020 K

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    Solution:

    begin{array}{l} Delta {H^o} = TDelta {S^o}\\ T = frac{{Delta {H^o}}}{{Delta {S^o}}} = frac{{400}}{{0.2}} = 2000K\\ T data-src= 2000K,,;,,Spontan eous\ T < 2000K,;,nonspontan eous\ T = 2000K,;,equillibrium end{array}">

     

    ∆G0=∆H0-T∆S0; ∆G0=+ve-T+ve; ∆G0 will be positive only when T<Teq;

                                                       

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