Chapter 8, Problem 72E

Interpretation Introduction

Interpretation:

The amount of heat emitted is to be determined when each amount of reactants reacts completely considering following generic reaction:

$\text{2A}+3\text{B}\to \text{C }\Delta H_{\text{r}\times \text{n}}=-125\text{ kJ}$

Concept introduction:

The amount of heat emitted in the reaction is calculated by the multiplication of the given number of moles of the reactants and enthalpy of reaction.

Mass to mole conversion factor = $\frac{\text{number of moles of compound}}{\text{molar mass of compound}}$

Conversion factor $=\frac{\text{quantity of heat emited/absorbed}}{\text{amount of reactant or product}}$