Chapter 9, Problem 9.3P

Interpretation Introduction

(a)

Interpretation:

It is to determine if the reaction is exothermic or endothermic. What should be done to maintain the temperature constant. Also, determine the state of the temperature if we ran the reactor adiabatically.

Concept introduction:

A system either absorbs heat or release heat to the surroundings. Exothermic reaction is the one where the heat gets released and endothermic reaction is the one where the heat gets absorbed. In exothermic, value of $\Delta H$ will be negative whereas in endothermic, value of $\Delta H$ will be positive.

Interpretation Introduction

(b)

Interpretation:

The $\Delta H^{\circ }{}_r$ for the combustion of n-hexane vapor should be calculated.

Concept introduction:

In standard heat of combustion, the reactant will be a hydrocarbon which reacts with oxygen and it forms carbon-di-oxide and water.

Interpretation Introduction

(c)

Interpretation:

The rate at which the heat is released or absorbed should be calculated.

Concept introduction:

In standard heat of combustion, the reactant will be a hydrocarbon which reacts with oxygen and it forms carbon-di-oxide and water.

Interpretation Introduction

(d)

Interpretation:

The reason for the value of Q to be greater when it is carried out in reactor should be explained.

Concept introduction:

In standard heat of combustion, the reactant will be a hydrocarbon which reacts with oxygen and it forms carbon-di-oxide and water.