Chapter 2, Problem 2F.10E

Interpretation Introduction

Interpretation:

Standard enthalpy of formation of anthracene molecule has to be calculated using the given data.

Concept Introduction:

Standard enthalpy change of reaction:

The standard enthalpy change of reaction is given by

  $\begin{array}{l}{\text{ΔH}}^{\text{o}}\text{=}{\displaystyle \sum {\text{nΔH}}_{\text{f}}^{\text{o}}}\left(\text{products}\right)\text{-}{\displaystyle \sum {\text{nΔH}}_{\text{f}}^{\text{o}}}\left(\text{reactants}\right)\\ \text{where,}\\ {\text{ΔH}}^{\text{o}}\text{-}\text{standard}\text{enthalpy}\text{change}\\ {\text{ΔH}}_{\text{f}}^{\text{o}}\text{-}\text{standard}\text{enthalpy}\text{change}\text{of}\text{formation}\end{array}$

Energy of Combustion: The energy released in the form of heat when given substance undergoes combustion reaction.

Enthalpy change: It is defined as the amount of heat released or absorbed by the chemical reaction at constant pressure conditions.