soal dan jawaban dasar-dasar pemisahan analitik (DDPA)

soal dan jawaban dasar-dasar pemisahan analitik (DDPA)

20.15


Hitunglah tekanan n-heksana pada 500 torr dan 100 torr ?
Jawab :

Dik: -∆HV =-6400
R = 1,987 kal/mol°
T = 273 K
T1 = 333
Dit : P n-heksana pada 500 torr ?

Peny:

Log p2/p1           = -∆HV/2,303.R(1/T2-1/T1)
Log 500/565 = -6400/2.303.1,987 (1/T2-1/333)
Log 0,88495 = -6400/4,57606 (1/T2-1/333)
-0,,05307             = -1398,58306 (1/T2-1/333)
            = -1398,58306/T2 + -1398,58306/333
-0,,05307             = -1398,58306/T2 + 4,19995
-0,,05307 - 4,19995 = -1398,58306/T2
-4,25302 = -1398,58306/T2
T2 = -1398,58306/-4,25302
        = 328,84469
T2 = 328,84469 - 273
T2 = 55,80°C


EmoticonEmoticon

Langganan: Posting Komentar (Atom)