The order of weakest to strongest acid for the given list has to be explained. Concept introduction: Strong acid: According to Arrhenius theory, a compound or a substance which completely ionized in a aqueous solution to give a hydronium ion and anion is said to be strong acid. Strong base: According to Arrhenius theory, a compound or a substance which completely ionized in a aqueous solution to give a hydroxide ion and cation is said to be strong base.

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 15, Problem 15.111QP

Interpretation Introduction

Interpretation:

The order of weakest to strongest acid for the given list has to be explained.

Concept introduction:

Strong acid:

According to Arrhenius theory, a compound or a substance which completely ionized in a aqueous solution to give a hydronium ion and anion is said to be strong acid.

Strong base:

According to Arrhenius theory, a compound or a substance which completely ionized in a aqueous solution to give a hydroxide ion and cation is said to be strong base.

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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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