Métodos Para Obtener Ra.docx

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Miguel Ángel García Bon Cinética Química y Catálisis 2019A Método numérico

t(h) 0 0.833 1.667 2.5 3.33 4.167 5

CA(mol/L) 50 38 30.6 25.6 22.2 19.5 17.4

dCA/dt -17.17 -11.64 -7.44 -5.04 -3.66 -2.88 -2.16

ln(-dCA/dt) 2.84 2.45 2.01 1.62 1.30 1.06 0.77

ln(CA) 3.91 3.64 3.42 3.24 3.10 2.97 2.86

método numérico 3.50 y = 1.9959x - 4.8764 R² = 0.9942

ln(-dCA/dt)

3.00 2.50 2.00 1.50 1.00 3.00

3.20

3.40

3.60

3.80

4.00

ln(CA)

3(50)  4(38)  30.6  dC A   17.17  dt   2(0.833)   t0 30.6  50  dC A   dt   2(0.833)  11.64  t1 25.6  38  dC A   dt   2(0.833)  7.44  t2

19.5  25.6  dC A   dt   2(0.833)  3.66  t1 17.4  22.2  dC A   dt   2(0.833)  2.88  t1 22.2  4(19.5)  3(17.4)  dC A   2.16  dt   2(0.833)  t1

22.2  30.6  dC A   dt   2(0.833)  5.04  t3

 dC ln  A  dt m  b  ln k

   ln k   ln C A 

  1.9959  2 k  0.00733

L mol  h

Miguel Ángel García Bon Cinética Química y Catálisis 2019A Método gráfico t(h) 0 0.833 1.667 2.5 3.33 4.167 5

CA(mol/L) 50 38 30.6 25.6 22.2 19.5 17.4

Δx 0.833 0.834 0.833 0.83 0.837 0.833

Δy -12 -7.4 -5 -3.4 -2.7 -2.1

Δy/Δx -14.41 -8.87 -6.00 -4.10 -3.23 -2.52

14.41 8.87 6.00 4.10 3.23 2.52

ln(Δy/Δx) 2.67 2.18 1.79 1.41 1.17 0.92

Método gráfico 3.00

y = 1.8642x - 4.6106 R² = 0.9993

2.50 2.00 1.50 1.00 0.50 2.70

2.90

3.10

3.30

3.50

  1.8642  2 k  0.01

L mol  h

3.70

3.90

4.10

ln(Δy) 3.91 3.64 3.42 3.24 3.10 2.97

Miguel Ángel García Bon Cinética Química y Catálisis 2019A Método polinomial

t(h) 0 0.833 1.667 2.5 3.33 4.167 5

CA(mol/L) 50 38 30.6 25.6 22.2 19.5 17.4

dCA/dt ln(dCA/dt) 49.989 3.91 38.0476402 3.64 30.5225478 3.42 25.650875 3.24 22.2081023 3.10 19.4893069 2.97 17.419 2.86

ln(CA) 3.91 3.64 3.42 3.24 3.10 2.97 2.86

méetodo polinomial 3.50 3.00 2.50 y = 2.0547x - 5.0958 R² = 0.9951

2.00 1.50 1.00 0.50 2.70

2.90

3.10

3.30

3.50

3.70

  2.0547  2 k  0.0061

l mol  h

3.90

4.10

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