Chapter 9, Problem 9.29P

Interpretation Introduction

Interpretation:

For each type of fuel total amount of heat (MJ) released by burning is to be calculated.

Concept introduction:
The standard enthalpy presented in chemical energy is exceptionally valuable synthetic properties. Hess’ law expresses that vitality changes. The measure of vitality depends on the conditions of the reactants and the condition. Vitality (enthalpy) changes in synthetic responses are the same stages.Given:
  $\begin{array}{l}{\text{C}}_{\text{2}}{\text{H}}_{\text{6}}{\text{O+3O}}_{\text{2}}\to {\text{2CO}}_{\text{2}}{\text{+3H}}_{\text{2}}\text{O}\text{}{\text{ΔH}}^{\text{0}}\text{=-1367 kJ}\\ {\text{C}}_{\text{19}}{\text{H}}_{\text{38}}{\text{O}}_{\text{2}}\text{+27}{\text{.5O}}_{\text{2}}\to {\text{19CO}}_{\text{2}}{\text{+19H}}_{\text{2}}\text{O}{\text{ΔH}}^{\text{0}}\text{=-}11,236\text{kJ}\end{array}$