Chapter 5, Problem 107SCQ

Interpretation Introduction

Interpretation:

The mass of methane to burn to heat the air has to be calculated.

Concept Introduction:

Heat energy required to raise the temperature of 1g of substance by 1K.Energy gained or lost can be calculated using the below equation.

  $\text{q=C×m×ΔT}$

Where, q= energy gained or lost for a given mass of substance (m), C =specific heat capacity,$\Delta T$= change in temperature.

The standard molar enthalpy of formation is the enthalpy change ${\text{Δ}}_{\text{f}}{\text{H}}^{\text{0}}$ is the enthalpy change for the formation of $\text{1mol}$ a compound directly from its component elements in their standard states. And is given by

  ${\text{Δ}}_{\text{r}}{\text{H}}^{\text{0}}$${\text{ΣnΔ}}_{\text{f}}{\text{H}}^{\text{0}}\text{(products)}\text{-}{\text{ΣnΔ}}_{\text{f}}{\text{H}}^{\text{0}}\text{(reactants)}$