Chapter 5, Problem 5G.11E

(a)

Interpretation Introduction

Interpretation:

The reaction quotient, $\text{Q}$ has to be written for the given reaction:

  $\text{2}{\text{BCl}}_{\text{3}\left(\text{g}\right)}\text{+}\text{2}{\text{Hg}}_{\left(\text{l}\right)}\stackrel{}{\to }{\text{B}}_{\text{2}}{\text{Cl}}_{\text{4}\left(\text{s}\right)}\text{+}{\text{Hg}}_{\text{2}}{\text{Cl}}_{\text{2}\left(\text{s}\right)}$

Concept Introduction:

The reaction quotient, $\text{Q}$, is characteristic of the composition of reaction mixture at equilibrium at a given temperature.

For the reaction,

  $\text{a}{\text{A}}_{\left(\text{g}\right)}\text{+}\text{b}{\text{B}}_{\left(\text{g}\right)}\rightleftharpoons \text{c}{\text{C}}_{\left(\text{g}\right)}\text{+}\text{d}{\text{D}}_{\left(\text{g}\right)}$

The reaction quotient can be written as

  $\text{Q}\text{=}\frac{{\left({\text{a}}_{\text{C}}\right)}^{\text{c}}{\left({\text{a}}_{\text{D}}\right)}^{\text{d}}}{{\left({\text{a}}_{\text{A}}\right)}^{\text{a}}{\left({\text{a}}_{\text{B}}\right)}^{\text{b}}}$

The expression of reaction quotient is same as the equilibrium constant expression, but activities in reaction quotient refers to any stage of the reaction.

(b)

Interpretation Introduction

Interpretation:

The reaction quotient, $\text{Q}$ has to be written for the given reaction:

  ${\text{P}}_{\text{4}}{\text{S}}_{\text{10}\left(\text{s}\right)}\text{+}\text{16}{\text{H}}_{\text{2}}{\text{O}}_{\left(\text{l}\right)}\stackrel{}{\to }\text{4}{\text{H}}_{\text{3}}{\text{PO}}_{\text{4}\left(\text{aq}\right)}\text{+}\text{10}{\text{H}}_{\text{2}}\text{S}{}_{\left(\text{aq}\right)}$

Concept Introduction:

Refer to sub-part (a).

(c)

Interpretation Introduction

Interpretation:

The reaction quotient, $\text{Q}$ has to be written for the given reaction:

  ${\text{Br}}_{\text{2}\left(\text{g}\right)}\text{+}\text{3}{\text{F}}_{\text{2}\left(\text{g}\right)}\stackrel{}{\to }\text{2}{\text{BrF}}_{\text{3}\left(\text{g}\right)}$

Concept Introduction:

Refer to sub-part (a).