Chapter 21, Problem 72PS

Interpretation Introduction

Interpretation:

To calculate enthalpy change when one mole of sulfur produced one mole of sulfuric acid and energy produced per metric ton of sulfuric acid is to be stated.

Concept introduction:

The amount of heat released or absorbed in a chemical reaction under constant pressure is known as enthalpy change. It is denoted by $\Delta \text{H}$.

The enthalpy change of any reaction is written as,

$\Delta \text{H}={\displaystyle \sum {\Delta }_f{\text{H}}_{\text{products}}-{\displaystyle \sum {\Delta }_f{\text{H}}_{\text{reactants}}}}$                                   (1)

Enthalpy of formation is the enthalpy change when one mole of a compound is formed from its elements.

$Numberofmoles=\frac{Mass}{Molecularmass}$