Question

The independent variables of independent functions are used as, Fi =

(a) [E1 E2 E3 …. EN-1 EN, K1 K2 K3 …. KN-1 KN].

(b) [T1 T2 T3 …. TN-1 TN, K1 K2 K3 …. KN-1 KN].

(c) [S1 S2 S3 …. SN-1 SN, E1 E2 E3 …. EN-1 EN].

(d) [K1 K2 K3 …. KN-1 KN, T1 T2 T3 …. TN-1 TN].

This question was addressed to me by my school teacher while I was bunking the class.

Asked question is from 2N Newton Method in division Rigorous Distillation Calculations of Distillation Design

Answer 1

Right choice is (c) [S1 S2 S3 …. SN-1 SN, E1 E2 E3 …. EN-1 EN].

The explanation: As Fi= [S1 S2 S3 …. SN-1 SN, E1 E2 E3 …. EN-1 EN] ^T  , where S is the same factor as used in Fenske’s equation and E are the respective energy of the systems.