Chapter 1, Problem 1.27NP

Interpretation Introduction

Interpretation: The mole fraction of ${\text{NH}}_{\text{3}}$ in the original mixture of ${\text{H}}_{\text{2}}$ and ${\text{NH}}_{\text{3}}$ needs to be determined with volume of $\text{139}{\text{.0 cm}}^{\text{3}}$ at $\text{0}\text{.00 }°\text{C}$ and 1 atm. The final volume on heating will be $\text{77}{\text{.4 cm}}^{\text{3}}$ .

Concept Introduction: The ideal gas equation is the equation which gives the relations between P, V, n and T of gases. It can be written as:

  $\text{P}\times \text{V = n}\times \text{R}\times \text{T}$

Here, P is pressure, V is volume, n is number of moles, R is Universal gas constant and T is temperature.

Mole fraction of any component in the mixture can be calculated by taking ratio of the number of moles that component to the total number of moles in the mixture.

  $X_A=\frac{n_{\text{A}}}{n_{\text{total}}}$

Here, $n_{\text{A}}$ is number of moles of component A and $n_{\text{total}}$ is total number of moles of mixture.