Two repeating units of the Nomex polymer whose two monomers are given below has to be drawn. Concept introduction: Polymers are large compounds formed by a number of repeated molecules called monomers. They are formed when the monomers are linked to one another by a suitable reaction like addition reaction or condensation reaction. Step-growth condensation polymers are synthesized by the stepwise reaction of monomers. Generally, the step-growth condensation monomers are bifunctional in nature. In step-growth polymerization , small molecules such as water, ammonia are eliminated.

Question

Using reaction free energy to predict equilibrium composition Consider the following equilibrium: N2O4 (g) 2NO2 (g) AG⁰ = 5.4 kJ Now suppose a reaction vessel is filled with 1.68 atm of dinitrogen tetroxide (N204) at 148. °C. Answer the following questions about this system: rise Under these conditions, will the pressure of N2O4 tend to rise or fall? x10 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 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. yes no 0.42 atm ☑ 5 0/5 ? مله Ar

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Question

Chapter 21, Problem 90E

Interpretation Introduction

Interpretation:

Two repeating units of the Nomex polymer whose two monomers are given below has to be drawn.

Concept introduction:

Polymers are large compounds formed by a number of repeated molecules called monomers. They are formed when the monomers are linked to one another by a suitable reaction like addition reaction or condensation reaction. Step-growth condensation polymers are synthesized by the stepwise reaction of monomers. Generally, the step-growth condensation monomers are bifunctional in nature. In step-growth polymerization, small molecules such as water, ammonia are eliminated.

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Using reaction free energy to predict equilibrium composition Consider the following equilibrium: N2O4 (g) 2NO2 (g) AG⁰ = 5.4 kJ Now suppose a reaction vessel is filled with 1.68 atm of dinitrogen tetroxide (N204) at 148. °C. Answer the following questions about this system: rise Under these conditions, will the pressure of N2O4 tend to rise or fall? x10 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 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. yes no 0.42 atm ☑ 5 0/5 ? مله Ar

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