Lab Quimica.docx

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♦ Determinar βˆ†π‘† π‘œ para la reacciΓ³n exotΓ©rmica Sea nuestra reacciΓ³n 𝐻2 𝑆(π‘Žπ‘) + 𝑀𝑔(𝑠) β†’ 𝑀𝑔𝑆(π‘Žπ‘) + 𝐻2(𝑔) βˆ†π‘† = 1. βˆ†π‘Ÿ 𝑆 π‘œ 𝐻2 + 1. βˆ†π‘Ÿ 𝑆 π‘œ 𝑀𝑔𝑆 βˆ’ (1. βˆ†π‘Ÿ 𝑆 π‘œ 𝐻2 𝑆 + 1. βˆ†π‘Ÿ 𝑆 π‘œ 𝑀𝑔) βˆ†π‘† = 1. 130,684 + 1. βˆ†π‘Ÿ 𝑆 π‘œ 𝑀𝑔𝑆 βˆ’ (1. 121 + 1. 32,68) βˆ†π‘† = ♦ Determinar βˆ†π» π‘œ para la reacciΓ³n a la temperatura de 0π‘œ 𝐢 , con las ecuaciones dadas en la introducciΓ³n teΓ³rica.

𝐻2 𝑆 + 𝑀𝑔 β†’ 𝑀𝑔𝑆 + 𝐻2 βˆ†π»π‘Ÿπ‘œ = 1. βˆ†π‘Ÿ 𝐻 π‘œ 𝐻2 + 1. βˆ†π‘Ÿ 𝐻 π‘œ 𝑀𝑔𝑆 βˆ’ (1. βˆ†π‘Ÿ 𝐻 π‘œ 𝐻2 𝑆 + 1. βˆ†π‘Ÿ 𝐻 π‘œ 𝑀𝑔) βˆ†π»π‘Ÿπ‘œ = 1. βˆ†π‘Ÿ 𝐻 π‘œ 𝐻2 + 1. βˆ†π‘Ÿ 𝐻 π‘œ 𝑀𝑔𝑆 βˆ’ (1. βˆ†π‘Ÿ 𝐻 π‘œ 𝐻2 𝑆 + 1. βˆ†π‘Ÿ 𝐻 π‘œ 𝑀𝑔) 𝑇1

βˆ†π»π‘Ÿπ‘‡ = βˆ†π»π‘Ÿπ‘œ + ∫ 𝑇2

P.W.Atkins. (1986). Fisicoquimica. Wilmington,Delaware,E.U.A: Addison-Wesley Iberoamericana, S.A. βˆ†π‘Ÿ 𝐢𝑝 = 𝐢𝑝,π‘š 𝑀𝑔𝑆 + 𝐢𝑝,π‘š 𝐻2 βˆ’ 𝐢𝑝,π‘š 𝐻2 𝑆 βˆ’ 𝐢𝑝,π‘š 𝑀𝑔 = 28.824-0-24.89

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