Presion De Vapor

DESARROLLO EXPERIMENTAL:

MATERIAL: REACTIVOS:

Un aparato de presión de vapor METANOL

Un micro mechero ETANOL

Una pinza de mohr ACETONA

Un vaso de pp. De 100 ml AGUA

Un vaso de pp. De 500 ml

Cuerpos de ebullición

Bomba de vacio

DIAGRAMA DE FLUJO:

TABLAS DE DATOS:

AGUA:

TEMPERATURA PRESION DEL MANOMETRO

57 *C 590 mmHg

59 *C 454 mmHg

60.5 *C 445 mmHg

63 *C 427 mmHg

64 *C 418 mmHg

68 *C 390 mmHg

68.5 *C 378 mmHg

71 *C 355 mmHg

73.5 *C 326 mmHg

74.5 *C 310 mmHg

ETANOL:

TEMPERATURA PRESION DEL MANOMETRO

48 *C 411 mmHg

50 *C 397 mmHg

52 *C 389 mmHg

53 *C 355 mmHg

59 *C 295 mmHg

61 *C 264 mmHg

62 *C 236 mmHg

63 *C 217 mmHg

64 *C 204 mmHg

68.5 *C 131 mmHg

ACETONA:

TEMPERATURA PRESION DEL MANOMETRO

39 *C 291 mmHg

41 *C 255 mmHg

42.5 *C 239 mmHg

44 *C 224 mmHg

45 *C 204 mmHg

46 *C 172 mmHg

47 *C 154 mmHg

48 *C 144 mmHg

49 *C 139 mmHg

50 *C 121 mmHg

OBTENCION DE DATOS:

AGUA:

P man T (*c) T ( *k) Pv 1/T X 10-3 *K Log Preal

590 57 330.15 -5 3.02 X 10-3

454 59 332.15 131 3.01 X 10-3 2.1172

445 60.5 333.65 140 2.99 X 10-3 2.1461

427 63 336.15 158 2.97 X 10-3 2.1986

418 64 337.15 167 2.96 X 10-3 2.2222

390 68 341.15 195 2.93 X 10-3 2.2900

378 68.5 341.65 207 2.92 X 10-3 2.3159

355 71 344.15 230 2.90 X 10-3 2.3617

326 73.5 346.65 259 2.88 X 10-3 2.4132

310 74.5 347.65 275 2.87 X 10-3 2.4393

Etanol

P man T (*c) T ( *k) Pv 1/T X 10-3 *K Log Preal

411 48 321.15 174 3.11 X 10-3 2.2405

397 50 323.15 188 3.09 X 10-3 2.2741

389 52 325.15 196 3.07 X 10-3 2.2922

355 53 326.15 230 3.06 X 10-3 2.3617

295 59 332.15 290 3.01 X 10-3 2.4623

264 61 334.15 321 2.99 X 10-3 2.5065

236 62 335.16 349 2.98 X 10-3 2.5428

217 63 336.15 368 2.97 X 10-3 2.6658

204 64 337.15 381 2.96 X 10-3 2.5809

131 68.5 341.65 454 2.92 X 10-3 2.6570

ACETONA:

P man T (*c) T ( *k) Pv 1/T X 10-3 *K Log P real

291 39 312.15 294 3.20 X 10-3 2.4683

255 41 314.15 330 3.18 X 10-3 2.5185

239 41.5 315.15 346 3.16 X 10-3 2.5390

224 44 317.15 361 3.15 X 10-3 2.5575

204 45 318.15 381 3.14 X 10-3 2.5809

172 46 319.15 413 3.13 X 10-3 2.6159

154 47 320.15 431 3.12 X 10-3 2.6344

144 48 321.15 441 3.11 X 10-3 2.6444

139 49 322.15 446 3.10 X 10-3 2.6493

121 50 323.15 464 3.09 X 10-3 2.6665

OBTENCION DE LAS ECUACIONES USANDO MINIMOS CUADRADOS

AGUA:

TEMPERATURA *K (X) PRESION REAL (Y) XY X2

330.15 -5 -1650.75 108999.0225

332.15 131 43511.65 110323.6225

333.65 140 46711 111322.3225

336.15 158 53111.7 112996.8225

337.15 167 56304.05 113670.1225

341.15 195 66524.25 116383.3225

341.65 207 70721.55 116724.7225

344.15 230 79154.5 118439.2225

346.65 259 89782.35 120166.2225

347.65 275 95603.75 120860.5225

∑X=3390.5 ∑Y=1757 ∑XY=599774.05 ∑X2=1149885.925

∑▒p=na+b∑▒T……………. (1)

∑▒PT=(∑▒〖h)a〗+b∑▒T^2 ……………. (2)

(1757 = 10 a + 3390.5b) -3390.5 ………. 1

(599774.05 = 3390.5 +1149885.925b) 10 …....... 2

-5957108.5=33905a – 11495457.25

5997740.5 = 33905a + 11495490.25

59632= 33b

B= 59632/33 = 1807.03 pendiente

1757 = 10 a + 3390.5b sustituimos b

1757 = 10a + 3390(1807.03)

1757 = 10a + 6125831.7

A = 1757 – 6125831.7 / 10

A= - 612407.47 ordenada al origen

∆Hv: m (2.303R)

= 1807.03 (2.303) (1.987)

= 1807.03 (4.5760)

∆Hv = 8269.0795 Cal/mol

ETANOL:

TEMPERATURA *K (X) PRESION REAL (Y) XY X2

321.15 174 55880.1 1031337.3225

323.15 188 60752.2 104425.9225

325.15 196 63729.4 105722.5225

326.15 230 775014.5 106373.8225

332.15 290 96323.5 110323.6225

334.15 321 107262.15 111656.2225

335.16 349 116967.35 112325.5225

336.15 368 123703.2 112996.8225

337.15 381 128454.15 113670.1225

341.65 454 155109.1 116724.7225

∑X=3311.5 ∑Y=2951 ∑XY=983195.65 ∑X2=1096606.833

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