Chapter 6, Problem 64E

a)

Interpretation Introduction

Interpretation:Whether in below reaction mole fraction of reactants or products increases or remains same as volume is increased is to be determined.

  ${\text{Br}}_2\left(g\right)+{\text{H}}_{\text{2}}\left(g\right)\rightleftharpoons 2\text{HBr}\left(g\right)$

Concept introduction: In accordance to Le Chatelier’s principle change in reaction condition brings changes in position of equilibrium and shifts equilibrium in that direction that tends to decrease the change. It states that with increase in pressure of container its volume decreases. Increase in volume shifts equilibrium in that direction that increases the overall volume. Decrease in volumes shifts equilibrium in that direction that has les number of moles.

Mole fraction is the ratio of number of moles of component in mixture to total number of moles in a solution. Hence mole fraction is directly related to number of moles.

b)

Interpretation Introduction

Interpretation: Whether in below reaction mole fraction of reactants or products increases or remains same as volume is increased is to be determined.

  $2{\text{CH}}_{\text{4}}\left(g\right)\rightleftharpoons {\text{C}}_{\text{2}}{\text{H}}_{\text{2}}\left(g\right)+3{\text{H}}_{\text{2}}\left(g\right)$

Concept introduction: In accordance to Le Chatelier’s principle change in reaction condition brings changes in position of equilibrium and shifts equilibrium in that direction that tends to decrease the change. It states that with increase in pressure of container its volume decreases. Increase in volume shifts equilibrium in that direction that increases the overall volume. Decrease in volumes shifts equilibrium in that direction that has les number of moles.

Mole fraction is the ratio of number of moles of component in mixture to total number of moles in a solution. Hence mole fraction is directly related to number of moles.

c)

Interpretation Introduction

Interpretation: Whether in below reaction mole fraction of reactants or products increases or remains same as volume is increased is to be determined.

  $\text{2HI}\left(g\right)\rightleftharpoons {\text{I}}_2\left(g\right)+{\text{H}}_{\text{2}}\left(g\right)$

Concept introduction: In accordance to Le Chatelier’s principle change in reaction condition brings changes in position of equilibrium and shifts equilibrium in that direction that tends to decrease the change. It states that with increase in pressure of container its volume decreases. Increase in volume shifts equilibrium in that direction that increases the overall volume. Decrease in volumes shifts equilibrium in that direction that has les number of moles.

Mole fraction is the ratio of number of moles of component in mixture to total number of moles in a solution. Hence mole fraction is directly related to number of moles.