Chapter 17, Problem 134CWP

(a)

Interpretation Introduction

Interpretation:

The authenticity of the given statements is to be determined.

Concept introduction:

Galvanic cell is used for the conversion of chemical energy into electrical energy and it involves a spontaneous process, while the concentration cell is used for the conversion of electrical energy into chemical energy and it involves non-spontaneous process.

To determine: The authentication of the given statement, “Copper metal can be oxidized by ${\text{Ag}}^{+}$ (at standard conditions)”.

The given statement is correct.

(b)

Interpretation Introduction

Interpretation:

The authenticity of the given statements is to be determined.

Concept introduction:

Galvanic cell is used for the conversion of chemical energy into electrical energy and it involves a spontaneous process, while the concentration cell is used for the conversion of electrical energy into chemical energy and it involves non-spontaneous process.

To determine: The authentication of the given statement, “In a galvanic cell the oxidizing agent in the cell reaction is present at the anode”.

The given statement is incorrect.

(c)

Interpretation Introduction

Interpretation:

The authenticity of the given statements is to be determined.

Concept introduction:

Galvanic cell is used for the conversion of chemical energy into electrical energy and it involves a spontaneous process, while the concentration cell is used for the conversion of electrical energy into chemical energy and it involves non-spontaneous process.

To determine: The authentication of the given statement, “In a cell using half reaction ${\text{Al}}^{3+}+3{\text{e}}^{-}\to \text{Al}$ and ${\text{Mg}}^{2+}+2{\text{e}}^{-}\to \text{Mg}$, Aluminum functions as the anode”.

The given statement is incorrect.

(d)

Interpretation Introduction

Interpretation:

The authenticity of the given statements is to be determined.

Concept introduction:

Galvanic cell is used for the conversion of chemical energy into electrical energy and it involves a spontaneous process, while the concentration cell is used for the conversion of electrical energy into chemical energy and it involves non-spontaneous process.

To determine: The authentication of the given statement, “In a concentration cell electrons always flow from the compartment with the mower ion concentration to the compartment with the higher ion concentration”.

The given statement is correct.

(e)

Interpretation Introduction

Interpretation:

The authenticity of the given statements is to be determined.

Concept introduction:

Galvanic cell is used for the conversion of chemical energy into electrical energy and it involves a spontaneous process, while the concentration cell is used for the conversion of electrical energy into chemical energy and it involves non-spontaneous process.

To determine: The authentication of the given statement, “In a galvanic cell the negative ions in the salt bridge flow in the same direction as the electrons”.

The given statement is incorrect.