Chapter 17, Problem 17.20P

(a)

Interpretation Introduction

Interpretation:

The reaction quotient, ${\text{Q}}_{\text{c}}$ for the given reaction ${\text{NaHCO}}_{\text{3}}{}_{\text{(s)}}\stackrel{}{\rightleftharpoons }{\text{ Na}}_{\text{2}}{\text{CO}}_{\text{3}}{}_{\text{(s)}}{\text{ + CO}}_{\text{2(g)}}{\text{ + H}}_{\text{2}}{\text{O}}_{\text{(g)}}$ has to be written.

Concept Introduction:

Reaction Quotient:

Reaction quotient, Q is the ratio between product of the product concentration to the product of the reactant concentration with each term raised to the power of its balancing coefficient.

Consider a general equation,

  $a\text{A +}b\text{A}\stackrel{}{\rightleftharpoons }c\text{C}+d\text{D}$

Where a, b, c and d are the stoichiometric coefficients.  The reaction quotient is,

  ${\text{Q}}_{\text{c}}\text{ = }\frac{{\text{[C]}}^{\text{c}}{\text{[D]}}^{\text{d}}}{{[\text{A]}}^{\text{a}}{\text{[B]}}^{\text{b}}}$

(b)

Interpretation Introduction

Interpretation:

The reaction quotient, ${\text{Q}}_{\text{c}}$ for the given reaction ${\text{SnO}}_2{}_{\text{(s)}}{\text{ + H}}_{\text{2(g)}}\stackrel{}{\rightleftharpoons }{\text{ Sn}}_{\text{(s)}}+{\text{H}}_{\text{2}}{\text{O}}_{\text{(g)}}$ has to be written.

Concept Introduction:

Reaction Quotient:

Reaction quotient, Q is the ratio between product of the product concentration to the product of the reactant concentration with each term raised to the power of its balancing coefficient.

Consider a general equation,

  $a\text{A +}b\text{A}\stackrel{}{\rightleftharpoons }c\text{C}+d\text{D}$

Where a, b, c and d are the stoichiometric coefficients.  The reaction quotient is,

  ${\text{Q}}_{\text{c}}\text{ = }\frac{{\text{[C]}}^{\text{c}}{\text{[D]}}^{\text{d}}}{{[\text{A]}}^{\text{a}}{\text{[B]}}^{\text{b}}}$

(c)

Interpretation Introduction

Interpretation:

The reaction quotient, ${\text{Q}}_{\text{c}}$ for the given reaction ${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}{}_{\text{(l)}}{\text{ + SO}}_{\text{3(g)}}\stackrel{}{\rightleftharpoons }{\text{H}}_{\text{2}}{\text{S}}_{\text{2}}{\text{O}}_{\text{7(l)}}$ has to be written.

Concept Introduction:

Reaction Quotient:

Reaction quotient, Q is the ratio between product of the product concentration to the product of the reactant concentration with each term raised to the power of its balancing coefficient.

Consider a general equation,

  $a\text{A +}b\text{A}\stackrel{}{\rightleftharpoons }c\text{C}+d\text{D}$

Where a, b, c and d are the stoichiometric coefficients.  The reaction quotient is,

  ${\text{Q}}_{\text{c}}\text{ = }\frac{{\text{[C]}}^{\text{c}}{\text{[D]}}^{\text{d}}}{{[\text{A]}}^{\text{a}}{\text{[B]}}^{\text{b}}}$