Chapter 9, Problem 9.18A

Interpretation Introduction

Interpretation:

The value of $\Delta H_f^{\circ }$ for ${\text{C}}_{\text{8}}{\text{H}}_{18}\left(l\right)$ needs to be determined.

Concept introduction:

For the general reaction as follows:

$A+B\to C+D$

For any reaction, the change in enthalpy change can be calculated as follows:

$\Delta H^{\circ }=\Delta H^{\circ }{}_f\left(C\right)+\Delta H^{\circ }{}_f\left(D\right)-\Delta H^{\circ }{}_f\left(A\right)-\Delta H^{\circ }{}_f\left(B\right)$