The bond enthalpy N-H has to be calculated using Pauling formula. Concept introduction: Bond enthalpy: The measure of stability of molecule is bond enthalpy. The change in enthalpy is related in breaking a specific bond of 1 mole of gaseous molecule. In solids and liquids bond enthalpies are affected by neighboring molecules. There is possibility to predict the enthalpy of reaction using the average bond enthalpies. Energy is always needed for the breaking of chemical bonds and release of energy always takes place with the formation of chemical bonds. The enthalpy of reaction is estimated by counting the total number of broken bonds and bonds formed in a reaction. The enthalpy of reaction in gas phase is given by, ΔH ° = ∑ BE (reactants) - ∑ BE (products)
The bond enthalpy N-H has to be calculated using Pauling formula. Concept introduction: Bond enthalpy: The measure of stability of molecule is bond enthalpy. The change in enthalpy is related in breaking a specific bond of 1 mole of gaseous molecule. In solids and liquids bond enthalpies are affected by neighboring molecules. There is possibility to predict the enthalpy of reaction using the average bond enthalpies. Energy is always needed for the breaking of chemical bonds and release of energy always takes place with the formation of chemical bonds. The enthalpy of reaction is estimated by counting the total number of broken bonds and bonds formed in a reaction. The enthalpy of reaction in gas phase is given by, ΔH ° = ∑ BE (reactants) - ∑ BE (products)
Solution Summary: The author explains that bond enthalpy is the measure of stability of a molecule. In solids and liquids, it is affected by neighboring molecules.
Author: Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Definition Definition Connection between particles in a compound. Chemical bonds are the forces that hold the particles of a compound together. The stability of a chemical compound greatly depends on the nature and strength of the chemical bonding present in it. As the strength of the chemical bonding increases the stability of the compound also increases.
Chapter 9, Problem 9.148QP
Interpretation Introduction
Interpretation:
The bond enthalpy N-H has to be calculated using Pauling formula.
Concept introduction:
Bond enthalpy:
The measure of stability of molecule is bond enthalpy. The change in enthalpy is related in breaking a specific bond of 1 mole of gaseous molecule. In solids and liquids bond enthalpies are affected by neighboring molecules. There is possibility to predict the enthalpy of reaction using the average bond enthalpies. Energy is always needed for the breaking of chemical bonds and release of energy always takes place with the formation of chemical bonds. The enthalpy of reaction is estimated by counting the total number of broken bonds and bonds formed in a reaction.
The enthalpy of reaction in gas phase is given by,
Calculate the overall enthalpy change for the reaction
Using average bond enthalpies (linked
above), estimate the enthalpy change
for the following reaction:
CH4(g) + Cl₂(g)→→→→CH3CI(g) +
HCI(g)
kJ
Consider the following reaction:A2 + B2 → 2AB ΔH = –377 kJThe bond energy for A2 is half the amount of AB. The bond energy of B2 = 405 kJ/mol. What is the bond energy of A2?
Chapter 9 Solutions
General Chemistry - Standalone book (MindTap Course List)
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Calorimetry Concept, Examples and Thermochemistry | How to Pass Chemistry; Author: Melissa Maribel;https://www.youtube.com/watch?v=nSh29lUGj00;License: Standard YouTube License, CC-BY