EQUILIBRIO ENTRE FASES PARA UNA SUSTANCIA PURA
Enviado por Fernandha Martinez • 20 de Noviembre de 2018 • Prácticas o problemas • 739 Palabras (3 Páginas) • 231 Visitas
LABORATORIO DE TERMODINÁMICA DEL EQUILIBRIO DE FASES
PRÁCTICA N° 1
“EQUILIBRIO ENTRE FASES PARA UNA SUSTANCIA PURA”
DIAGRAMA DE BLOQUES
[pic 1]
CÁLCULOS
Tabla de datos experimentales
Experimento | Temperatura | Presión | Ln P | 1 / T | ||
T ( C ) | T ( K ) | Manométrica () mm de Hg[pic 2] | Absoluta (P)= Patm-[pic 3] | |||
1 | 59 | 332.15 | 453 | 132 | 4.8828 | 3.010x10-3 |
2 | 61 | 334.15 | 450 | 135 | 4.9050 | 2.992x10-3 |
3 | 65 | 338.15 | 414 | 171 | 5.1416 | 2.957x10-3 |
4 | 75 | 348.15 | 318 | 267 | 5.5872 | 2.872x10-3 |
5 | 83 | 356.15 | 207 | 378 | 5.9348 | 2.807x10-3 |
6 | 86 | 359.15 | 153 | 432 | 6.0684 | 2.784x10-3 |
7 | 88 | 361.15 | 109 | 476 | 6.1654 | 2.768x10-3 |
8 | 93 | 366.15 | 0 | 585 | 6.3716 | 2.731x10-3 |
Curva de presión de vapor del agua
[pic 4]
Curva de presión de vapor del agua
[pic 5]
Cálculo de [pic 6]
- [pic 7]
Pr = 132 | Tr = 332.15 | [pic 8] | [pic 9] |
P = 585 | T = 366.5 |
[pic 10]
- [pic 11]
- [pic 12]
- [pic 13]
- [pic 14]
- [pic 15]
- [pic 16]
- [pic 17]
T (K) | P experim. (mmHg) | x | y |
332.15 | 132 | 682.15 | 3330.803331 |
334.15 | 135 | 684.15 | 3355.94374 |
338.15 | 171 | 688.15 | 3538.235776 |
348.15 | 267 | 698.15 | 3900.737651 |
356.15 | 378 | 706.15 | 4190.925536 |
359.15 | 432 | 709.15 | 4303.424006 |
361.15 | 476 | 711.15 | 4384.536907 |
366.15 | 585 | 716.15 | 4563.029824 |
[pic 18]
A=36.863 |
B=21836 |
C=350 |
Calculando presiones mediante la ecuación de Antoine
LnP=A-(B/(T+C)) | t (K) | P calculada (mmHg) | P experim. (mmHg) | %Difer. |
128.0531147 | 332.15 | 128.0531147 | 132 | -3.08222512 |
140.6145879 | 334.15 | 140.6145879 | 135 | 3.99289151 |
169.2786378 | 338.15 | 169.2786378 | 171 | -1.01688091 |
266.6811593 | 348.15 | 266.6811593 | 267 | -0.11955875 |
380.083699 | 356.15 | 380.083699 | 378 | 0.5482211 |
433.2032461 | 359.15 | 433.2032461 | 432 | 0.27775556 |
472.3896574 | 361.15 | 472.3896574 | 476 | -0.76427215 |
585.3330711 | 366.15 | 585.3330711 | 585 | 0.05690283 |
...