Chapter 4, Problem 4.25NP

Interpretation Introduction

Interpretation:

The change in enthalpy should be calculated between T = 288 K and T = 318 K by using the given DSC data and whether the method is accurate or not should be determined.

Concept Introduction:

The mathematical expression for the standard enthalpy change value at room temperature is:

  $\Delta H{°}_R={\displaystyle \sum \text{n}}\text{H°(products})-{\displaystyle \sum \text{p}}\text{H°(reactants)}$

Where, n and p represents the coefficients of reactants and products in the balanced chemical equation.

The enthalpy change of reaction is calculated by the following expression:

  $\Delta H={\displaystyle \underset{T_1}{\overset{T_2}{\int }}\Delta C_p}(T)dT$