The range of oxidation states of group 5A ( 15 ) elements has to be given. Concept Introduction: Oxidation state: The number of electrons lost or gain from an atom in the formation of molecule is known as oxidation number. Electron configurations: The arrangement of electrons in the atomic orbital by increasing order of their energies is known as electron configurations.

Question

Using reaction free energy to predict equilibrium composition Consider the following equilibrium: 2NO2 (g) = N2O4(g) AGº = -5.4 kJ Now suppose a reaction vessel is filled with 4.53 atm of dinitrogen tetroxide (N2O4) at 279. °C. Answer the following questions about this system: Under these conditions, will the pressure of N2O4 tend to rise or fall? Is it possible to reverse this tendency by adding NO2? In other words, if you said the pressure of N2O4 will tend to rise, can that be changed to a tendency to fall by adding NO2? Similarly, if you said the pressure of N2O4 will tend to fall, can that be changed to a tendency to '2' rise by adding NO2? If you said the tendency can be reversed in the second question, calculate the minimum pressure of NO 2 needed to reverse it. Round your answer to 2 significant digits. 00 rise ☐ x10 fall yes no ☐ atm G Ar 1

Answer 1

Question

Chapter 14, Problem 14.58P

(a)

Interpretation Introduction

Interpretation:

The range of oxidation states of group 5A(15) elements has to be given.

Concept Introduction:

Oxidation state:

The number of electrons lost or gain from an atom in the formation of molecule is known as oxidation number.

Electron configurations:

The arrangement of electrons in the atomic orbital by increasing order of their energies is known as electron configurations.

(b)

Interpretation Introduction

Interpretation:

The general rule for the range of oxidation states in groups on the right side of the periodic table has to be illustrated.

Concept Introduction:

Oxidation state:

The number of electrons lost or gain from an atom in the formation of molecule is known as oxidation number.

Electron configurations:

The arrangement of electrons in the atomic orbital by increasing order of their energies is known as electron configurations.

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Using reaction free energy to predict equilibrium composition Consider the following equilibrium: 2NO2 (g) = N2O4(g) AGº = -5.4 kJ Now suppose a reaction vessel is filled with 4.53 atm of dinitrogen tetroxide (N2O4) at 279. °C. Answer the following questions about this system: Under these conditions, will the pressure of N2O4 tend to rise or fall? Is it possible to reverse this tendency by adding NO2? In other words, if you said the pressure of N2O4 will tend to rise, can that be changed to a tendency to fall by adding NO2? Similarly, if you said the pressure of N2O4 will tend to fall, can that be changed to a tendency to '2' rise by adding NO2? If you said the tendency can be reversed in the second question, calculate the minimum pressure of NO 2 needed to reverse it. Round your answer to 2 significant digits. 00 rise ☐ x10 fall yes no ☐ atm G Ar 1

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