섹션 개요

    • The enthalpy of the original form and generated form is written on the right side, and the breakdown is written as the binding energy and Gibbs energy on the left side.

       

      original form TShydrogenGhydrogenTSoxygenGoxygen= HhydrogenHoxygen

                    generated form            TSwaterGwater                        = Hwater

       

      Here, take the difference on both sides of the generated form and original form ([generated form] - [original form])

      TSwaterGwater -(TShydrogenGhydrogenTSoxygenGoxygen) = Hwater -(HhydrogenHoxygen

      To summarize this,

      TS【generated form】-【original form】)+ ⊿G【generated form】-【original form】 = ⊿H【generated form】-【original form】


       


      H【generated form】-【original form】TS【generated form】-【original form】)+ ⊿G【generated form】-【original form】

       

      What this means is that the total energy difference (⊿H) before and after the chemical reaction is distributed to

                    【Change in binding energy required to adjust the collective state of matter:T・⊿S

                                                              and

                    【Free energy difference that can be used as work:⊿G


       

       

       Now, when we consider the direction in which chemical reactions progress and the conditions for chemical equilibrium, the law of "increasing entropy" comes into play.