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Leis dos Gases 3º eso Francisco Mariño Domínguez
Leis dos Gases Edmé Mariotte Gay - Lussac Evangelista Torricelli J. Alexandre Charles Robert Boyle
Lei de Boyle e Mariotte ( Temperatura constante)‏
[object Object],[object Object],[object Object],Lei de Boyle e Mariotte ( Temperatura constante)‏ Estado Inicial Estado Final V 1 V 2 P 1 P 2 V 1 P 1 P 2 V 2 = + - V 2 P 2 V 1 P 1 Volume Presión
Lei de Gay-Lussacc (Volume constante)‏
Lei de Gay-Lussacc (Volume constante)‏ ,[object Object],[object Object],Estado Inicial Estado Final P 1 P 2 P 1 t 1 t 2 P 2 = t 1 t 2 Volume Constante + + t 2 P 2 t 1 P 1 Temperatura Presión
Lei de Charles (Presión constante)‏
[object Object],[object Object],Lei de Charles (Presión constante)‏ Estado Inicial Estado Final V 1 V 2 V 1 t 1 t 2 V 2 = t 1 t 2 Presión Constante + + t 2 V 2 t 1 V 1 Temperatura Volume
Lei Combinada Boyle e Charles ,[object Object],[object Object],P 1 t 1 t 2 P 2 = V 1 V 2
Exemplo Nº 1 ,[object Object],V 1 t 1 t 2 V 2 = 400 ml 303 K = X ml 279 K X = 368,3 ml Lei de Charles e Gay Lussacc Previamente, transformamos  os grados Celsius en graos Kelvin
Exemplo Nº 2 ,[object Object],V 1 t 1 t 2 V 2 = 420 ml 333 K = X ml 111 K X = 140 ml Lei de Charles e Gay Lussacc 60 ºC  … 60 + 273  =  333 K -162 ºC … -162 + 273 =  111 K Previamente, transformamos  os grados Celsius en graos Kelvin
Exemplo Nº 3 ,[object Object],X = 19,2 ml Lei de Boyle-Mariotte V 1 P 1 P 2 V 2 = 720 14,4 X = 540
Exemplo Nº 4 ,[object Object],P 1 t 1 t 2 P 2 = 12 atm 297 K = 18 atm X X = 445.5 K Lei de Gay Lussacc Previamente, transformamos  os grados Celsius en graos Kelvin
Exemplo Nº 5 ,[object Object],P 1 t 1 = 111·180 333 = 800·V 2 40 X = 3 ml Lei Combinada de Boyle e Charles V 1 P 2 t 2 V 2 60 ºC  … 60 + 273  =  333 K -233 ºC … -233 + 273 =  40 K Previamente, transformamos  os grados Celsius en graos Kelvin
The End ¡A descansar!

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