Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc...

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Método Científico Observar curiosamente

Transcript of Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc...

Page 1: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more

Método Científico

Observar curiosamente

Page 2: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 3: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more

Experimento de Boyle

Page 4: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 5: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more

Experimento de Charles (Jacques)

Page 6: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
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Experimento de Gay-Lussac (Joseph Louis) e Avogadro (Amadeo)

?

Page 8: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more

1

1.660538921 10−24 = 6.0221429011674 1023

Page 9: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 10: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more

P =ρ R TM

O que acontece com a pressão atmosférica quando está prestes a

chover?

M =ρ R TP

Page 11: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more

C = 12,011 g mol-1

H = 1,00797 g mol-1

O = 15,9995 g mol-1

Page 12: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more

NaN3(s)

N2(g)

+ Na(s)

Qual a massa de NaN3 deverá ser

usada em um air bag de 57,0 L, P = 1,30 atm na temperatura de 25,0 oC?

Page 13: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 14: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 15: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 16: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 17: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 18: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more
Page 19: Método Científico - quimica.ufpr.brquimica.ufpr.br/edulsa/cq112/Aulas-Slides/Gases.pdf · At O oc fewer than hafthe mola:ules move at speeds greater than 500 m/s At 100 oc more

P =R T

V M − b−

a

VM2

P =R T

V M − b−

a

T V M2

P =R T exp(− a

R T VM )VM − b