Concept explainers
(a)
Interpretation:
The given bonds ranked from strong to weak has to be explained.
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
The enthalpy of reaction in gas phase is given by,
(b)
Interpretation:
The enthalpy required to completely dissociate each of the product has to be compared.
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,
(c)
Interpretation:
The change of
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,
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OWLv2 for Ebbing/Gammon's General Chemistry, 11th Edition, [Instant Access], 1 term (6 months)
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- Based on the bond energies for the reaction below, what is the enthalpy of the reaction? HC≡CH (g) + 5/2 O₂ (g) → 2 CO₂ (g) + H₂O (g)arrow_forwardUsing average bond enthalpies, estimate the enthalpy change for the following reaction: 2CO(g) + O2(g) → 2CO2 (g) Bond Bond Energy (kJ/mol) C=O 1072 0=0 498 C=O 732 ▲Hrxn kJarrow_forwardConsider 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?arrow_forward
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