# 8.22: Untitled Page 211

- Page ID
- 18344

## Chapter 8

is different than ( *m*

) , Eq. 8‐47 is still correct, but our *interpretation* of *n* is *cell * 1

1

not correct. Consider the case, ( *m*

) *m*

, and develop a new version of

*cell * 1

*cell*

Eq. 8‐47 in which the incoming flux of cells is interpreted properly in terms of the number of cells per unit volume in the incoming stream.

8‐18. Develop a general solution for Eqs. 8‐54 and consider the behavior of the system for *D * , *D * and *D * .

*Section* 8.5

8‐19. Repeat the analysis of binary batch distillation when Raoult’s law is applicable, i.e., the *process* *equilibrium relation* is given by

*x *

*eff*

*A*

*y *

*A exit*

1 *x *

*A * *eff*

1

Here

is the effective relative volatility and is temperature dependent; *eff*

however, in this problem you may assume that

is constant. Use your result

*eff*

to construct figures comparable to Figure 8‐12 for o

*x * 0 1

*. * and o

*x * 0 5

*. * with

*A*

*A*

values of

given by 1 */ * 4 , 1 */ * 2 , 1, 2, and 4.

*eff*