Chapter 1, Problem 1.5P

Interpretation Introduction

Interpretation:

The correct set of the mole balances for species $A,B,\text{ and }C$ is to be specified for the given conditions.

Concept Introduction:

Mole balance depends on the law of conservation of mass. To apply it, the boundary of a system must be specified, and the volume enclosed by this boundary is considered for the mole balance. At any point of time, mole balance applied on species i is defined by the equation as:

  $\left[\begin{array}{l}\text{Rate of molar}\\ \text{flow of }i\text{ into}\\ \text{the system}\\ \left(\text{moles}/\text{time}\right)\end{array}\right]-\left[\begin{array}{l}\text{Rate of molar}\\ \text{flow of }i\text{ out}\\ \text{of the system}\\ \left(\text{moles}/\text{time}\right)\end{array}\right]+\left[\begin{array}{l}\text{Rate of generation}\\ \text{of }i\text{ by chemical}\\ \text{reaction in the system}\\ \left(\text{moles}/\text{time}\right)\end{array}\right]=\left[\begin{array}{l}\text{Rate of accumulation}\\ \text{of }i\text{ in the system}\\ \left(\text{moles}/\text{time}\right)\end{array}\right]$