Chapter 7.3, Problem 7.5P

Interpretation Introduction

Interpretation:

The heat is absorbed for the production of $127g$ of $NO$ in $kcal$ and $kJ$ has to be determined.

Concept Introduction:

Enthalpy $\text{H}$: It is the total amount of heat in a particular system.

The value of heat formed in a reaction $\text{ΔH}$ is calculated by the formula,

$\text{ΔH=}{{\displaystyle \sum \left(BondDissociationEnergy\right)}}_{\left(\text{reactants}\right)}-{{\displaystyle \sum \left(BondDissociationEnergy\right)}}_{\left(\text{products}\right)}$

Conversion of $kcal$ to joules:

$1kcal=4184J$

Moles:

$\text{Number of moles}\text{=}\frac{\text{Given}\text{mass}}{\text{Molecular}\text{mass}}$