(a) Interpretation: The primary, secondary or tertiary amine in the given compound is to be classified. Concept introduction: Amines are nitrogen-containing organic compounds. The general formula of amines is R − NH 2 . Amines can be classified as primary amine, secondary amine, and tertiary amine. In Primary amines, one of the hydrogen atoms of ammonia is replaced by alkyl or aryl group. In secondary amines, two of the hydrogen atoms of ammonia are replaced by alkyl or aryl group. In tertiary amines, all hydrogen atoms of ammonia are replaced by alkyl or aryl group.

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 3.2, Problem 6P

Interpretation Introduction

(a)

Interpretation: The primary, secondary or tertiary amine in the given compound is to be classified.

Concept introduction: Amines are nitrogen-containing organic compounds. The general formula of amines is R−NH2. Amines can be classified as primary amine, secondary amine, and tertiary amine. In Primary amines, one of the hydrogen atoms of ammonia is replaced by alkyl or aryl group.

In secondary amines, two of the hydrogen atoms of ammonia are replaced by alkyl or aryl group.

In tertiary amines, all hydrogen atoms of ammonia are replaced by alkyl or aryl group.

Interpretation Introduction

(b)

Interpretation: The primary, secondary or tertiary amine in the given compound is to be classified.

Concept introduction: Amines are nitrogen-containing organic compounds. The general formula of amines is R−NH2. Amines can be classified as primary amine, secondary amine, and tertiary amine. In Primary amines, one of the hydrogen atoms of ammonia is replaced by alkyl or aryl group.

In secondary amines, two of the hydrogen atoms of ammonia are replaced by alkyl or aryl group.

In tertiary amines, all hydrogen atoms of ammonia are replaced by alkyl or aryl group.

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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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