Given names, formulas are to be written; given formulas, names are to be written. Dichlorine monoxide, tribromine octoxide, HBr(g), P 2 O 3 Concept introduction: Many chemical compounds are produced by one metalloid and one non-metal or two non-metal elements. Thus, these compounds are referred as binary molecular compounds. In other words, a binary molecular compound is made up of two different elements (non-metals) i.e., there can be presence of more than one atom of element. The word mono , di , tri , tetra etc., can be used to name the prefixes.

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 6, Problem 13E

Interpretation Introduction

Interpretation:

Given names, formulas are to be written; given formulas, names are to be written.

Dichlorine monoxide, tribromine octoxide, HBr(g), P₂O₃

Concept introduction:

Many chemical compounds are produced by one metalloid and one non-metal or two non-metal elements. Thus, these compounds are referred as binary molecular compounds. In other words, a binary molecular compound is made up of two different elements (non-metals) i.e., there can be presence of more than one atom of element. The word mono, di, tri, tetra etc., can be used to name the prefixes.

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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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