Chapter 16, Problem 2PE

(a)

Interpretation Introduction

Interpretation:

Equation for solid and gaseous form of ${\text{I}}_{\text{2}}$ in closed container has to be given.

Concept Introduction:

Reaction that occurs in both the direction that is forward and reverse is termed as reversible reaction. In these reactants react to produce product and further product reacts to form reactants back.

(b)

Interpretation Introduction

Interpretation:

Equation for solid ${\text{NaNO}}_3$ in aqueous solution of ${\text{NaNO}}_3$ has to be given.

Concept Introduction:

Refer to part (a).