Guardado Con Autorrecuperación De Documento1.asd.docx

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♦ Determinar ∆𝑆 𝑜 para la reacción exotérmica Sea nuestra reacción 𝐻2 𝑆(𝑎𝑐) + 𝑀𝑔(𝑠) → 𝑀𝑔𝑆(𝑎𝑐) + 𝐻2(𝑔) ∆𝑆 = 1. ∆𝑟 𝑆 𝑜 𝐻2 + 1. ∆𝑟 𝑆 𝑜 𝑀𝑔𝑆 − (1. ∆𝑟 𝑆 𝑜 𝐻2 𝑆 + 1. ∆𝑟 𝑆 𝑜 𝑀𝑔) ∆𝑆 = 1. 130,684 + 1. ∆𝑟 𝑆 𝑜 𝑀𝑔𝑆 − (1. 121 + 1. 32,68) ∆𝑆 = ♦ Determinar ∆𝐻 𝑜 para la reacción a la temperatura de 0𝑜 𝐶 , con las ecuaciones dadas en la introducción teórica.

𝐻2 𝑆 + 𝑀𝑔 → 𝑀𝑔𝑆 + 𝐻2 ∆𝐻𝑟𝑜 = 1. ∆𝑟 𝐻 𝑜 𝐻2 + 1. ∆𝑟 𝐻 𝑜 𝑀𝑔𝑆 − (1. ∆𝑟 𝐻 𝑜 𝐻2 𝑆 + 1. ∆𝑟 𝐻 𝑜 𝑀𝑔) ∆𝐻𝑟𝑜 = 1. ∆𝑟 𝐻 𝑜 𝐻2 + 1. ∆𝑟 𝐻 𝑜 𝑀𝑔𝑆 − (1. ∆𝑟 𝐻 𝑜 𝐻2 𝑆 + 1. ∆𝑟 𝐻 𝑜 𝑀𝑔) 𝑇1

∆𝐻𝑟𝑇 = ∆𝐻𝑟𝑜 + ∫ 𝑇2

P.W.Atkins. (1986). Fisicoquimica. Wilmington,Delaware,E.U.A: Addison-Wesley Iberoamericana, S.A. ∆𝑟 𝐶𝑝 = 𝐶𝑝,𝑚 𝑀𝑔𝑆 + 𝐶𝑝,𝑚 𝐻2 − 𝐶𝑝,𝑚 𝐻2 𝑆 − 𝐶𝑝,𝑚 𝑀𝑔 = 28.824-0-24.89

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