HCO2H?Material from chapter 12, 152 NO2 (g) > N2O4 (g)AH = -57.23 kJ/mola.Is this endothermic or exothermic?b. If 5 mols of NO2 react, what is the amount of energy absorbed?What intermolecular forces are present in NO2 (g)?С.d. Write the equilibrium constant expression.How does the equilibrium shifti. as the temperature is increased?ii. as more N2O4 (g) is added?iii. as the volume is decreased?e.

Given that : For reaction 2 NO2 (g)<--> N2O4 (g) Enthalpy change = - 57.23 kJ/mol

2 NO2 (g) > N2O4 (g) AH = -57.23 kJ/mol Is this endothermic or exothermic? a. b. If 5 mols of NO2 react, what is the amount of energy absorbed? С. What intermolecular forces are present in NO2 (g)? d. Write the equilibrium constant expression.

2 NO2 (g) > N2O4 (g) AH = -57.23 kJ/mol Is this endothermic or exothermic? a. b. If 5 mols of NO2 react, what is the amount of energy absorbed? С. What intermolecular forces are present in NO2 (g)? d. Write the equilibrium constant expression.

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter17: Equilibrium

Section: Chapter Questions

Problem 31A

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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

HCO2H?
Material from chapter 12, 15
2 NO2 (g) > N2O4 (g)
AH = -57.23 kJ/mol
a.
Is this endothermic or exothermic?
b. If 5 mols of NO2 react, what is the amount of energy absorbed?
What intermolecular forces are present in NO2 (g)?
С.
d. Write the equilibrium constant expression.
How does the equilibrium shift
i. as the temperature is increased?
ii. as more N2O4 (g) is added?
iii. as the volume is decreased?
e.

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