Chapter 20, Problem 32PS

Interpretation Introduction

Interpretation: The energy released by burning methane in $1.00m^3$ methane hydrate should be determined.

Concept introduction:

Enthalpy of combustion: At standard conditions when one mole of substance is burnt completely in presence of oxygen, the enthalpy change involved is called enthalpy of combustion.

  ${\text{ΔH}}^{\text{0}}{}_{\text{comb}}\text{=}\sum \text{n}{\text{ΔH}}^{\text{0}}{\text{f}}_{\text{products}}\text{-}\sum \text{n}{\text{ΔH}}^{\text{0}}{\text{f}}_{\text{reactants}}$

The number of moles from the volume is,

  $\text{Number}\text{of}\text{moles}\text{=}\frac{\text{Volume at STP}}{\text{22}\text{.4}\text{L/mol}}$