Phase Transition: Entropy vs Pressure & Energy vs Volume

[juan perez]

hi, I find that the point where the entalphy vs pressure curves of diferent phases crystaline of material is crossing corresponding at the presure where occurs a phase transition, also i find that by meant of the solope of the tangent of the curves of energy vs volume i can determine the presure at ocurrs a trasition at other phase, where a find an explication of this.

sorry if i don't write clear but no speak english
thanks

 

[armandowww]

If you are thinking of a phase transition solid-solid-like, you need for Helmoltz free energy, F. If not... Give us some efforts, please.

 

[charng]

Hello, thank you for sharing your findings. It is interesting to note that the intersection of enthalpy vs pressure curves can indicate the pressure at which a phase transition occurs in a crystalline material. Additionally, the slope of the tangent of the curves of energy vs volume can also provide insight into the pressure at which a phase transition occurs in other phases. This is likely due to changes in the energy and volume of the material during the phase transition process. Further research and analysis of these relationships can help us better understand the underlying mechanisms of phase transitions and their effects on materials. Thank you for your contribution.