Explanation The given reaction is as follows: N 2 O 4 (g) ⇌ 2NO 2 (g) Step I: Calculate the standard enthalpy change ( ΔH 0 ) for the given reaction ΔH 0 = ∑ nΔH f 0 (products) − ∑ nΔH f 0 (reactants) where: n = number of moles and ΔH f 0 = enthalpy of formation ΔH 0 = [2 × ΔH f 0 ( NO 2 ) ] − [ 1 × ΔH f 0 ( N 2 O 4 ) ] = 2 ( 33.84 ) − 1 ( 9.66 ) = 58.02 kJ Step II: Calculate the standard entropy change ( ΔS 0 ) for the given reaction ΔS 0 = ∑ nS f 0 (products) − ∑ nS f 0 (reactants) where: n = number of moles and S f 0 = entropy of formation ΔS 0 = [2 × S f 0 ( NO 2 ) ] − [ 1 × S f 0 ( N 2 O 4 ) ] ΔS 0 = 2 ( 240.45 J/K ) − 1 ( 304.3 J/K ) = 176.6 J/K = 0 .1766 kJ/K Step III: Calculate the standard free energy change ( ΔG 0 ) for the given reaction at T = 100 0 C T = 100 0 C = 100 + 273 = 373 K ΔG 0 = ΔH 0 − TΔS 0 = 58.02 − ( 373 ) ( 0.1766 ) = − 7 Interpretation Introduction (b) To determine: The shape of the N 2 O 4 molecule and the nitrogen hybrid orbitals involved in bonding.

Chemistry, Books a la Carte Plus Mastering Chemistry with eText -- Access Card Package (7th Edition)

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ISBN: 9780133900811

Author: John E. McMurry, Robert C. Fay, Jill Kirsten Robinson

Publisher: PEARSON

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Chapter 17, Problem 17.155MP

Interpretation Introduction

(a)

To determine:

The equilibrium partial pressure of NO₂ and N₂O₄.

Interpretation Introduction

(b)

To determine:

The shape of the N₂O₄ molecule and the nitrogen hybrid orbitals involved in bonding.

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Chapter 17, Problem 17.154MP

Chapter 18, Problem 18.1P

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Chapter 17 Solutions

Chemistry, Books a la Carte Plus Mastering Chemistry with eText -- Access Card Package (7th Edition)

Ch. 17 - Prob. 17.1P Ch. 17 - Prob. 17.2P Ch. 17 - Prob. 17.3A Ch. 17 - Prob. 17.4P Ch. 17 - Prob. 17.5P Ch. 17 - Prob. 17.6A Ch. 17 - Prob. 17.7P Ch. 17 - Prob. 17.8A Ch. 17 - Prob. 17.9P Ch. 17 - APPLY 17.10 Use the values of Hf and S in Appendix...

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(a) To determine: The equilibrium partial pressure of NO 2 and N 2 O 4 .

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(a) To determine: The equilibrium partial pressure of NO2 and N2O4.

(b) To determine: The shape of the N2O4 molecule and the nitrogen hybrid orbitals involved in bonding.

Want to see the full answer?

Chapter 17 Solutions

(a)

To determine:

The equilibrium partial pressure of NO₂ and N₂O₄.

(b)

To determine:

The shape of the N₂O₄ molecule and the nitrogen hybrid orbitals involved in bonding.