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13 April, 22:18

If a reaction is endothermic and has a positive delta s, what should you do to the temperature in order to make sure the reaction will run spontaneously

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  1. 13 April, 22:37
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    Answer is: temperature must be increased to very high values.

    The change in Gibbs free energy (ΔG), at constant temperature and pressure, is: ΔG=ΔH-TΔS.

    ΔH is the change in enthalpy; in this example ΔH>0 ...

    ΔS is change in entropy; ΔS>0.

    T is temperature of the system.

    When ΔG is negative, a reaction (occurs without the addition of external energy) will be spontaneous (exergonic).

    TΔS > ΔH.
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