Chapter 6, Problem 6.64P

(a)

Interpretation Introduction

Interpretation:Energy released by combustion of octane is to be calculated.

Concept Introduction : The reaction for combustion of octane is:

  ${\text{2C}}_{\text{8}}{\text{H}}_{\text{18}}{\text{+25O}}_{\text{2}}\to {\text{16CO}}_{\text{2}}{\text{+18H}}_{\text{2}}\text{O}$

Combustion is basically the reaction of a substance with oxygen. In the above reactionthe combustion of octane gives ${\text{ CO}}_{\text{2}}$ and ${\text{H}}_{\text{2}}\text{O}$ as the product.

(b)

Interpretation Introduction

Interpretation:The cruising range of the car on a full tank is to be determined.

Concept Introduction : Cruise range covered by car depends on the amount of chemical energy transferred to the surrounding by the system.

(c)

Interpretation Introduction

Interpretation:Miles of the car is to be related if the actual cruising mile is 455 with respect to (b).

Concept Introduction : Chemical energy is the potential of chemical substance to undergo a chemical reaction.Work done is directly proportional to the chemical energy provided.

The work done depends on the energy transferred to the surrounding by the system.