Asked by Blair Leclair on Jul 31, 2024
Verified
Energy is ________ when bonds are formed and is ________ when bonds are broken; therefore, bond dissociation energies are always ________.
A) released; consumed; exothermic
B) released; consumed; endothermic
C) consumed; released; exothermic
D) consumed; released; endothermic
E) consumed; released; isothermic
Bonds Formed
The creation of chemical bonds between two or more atoms leading to the formation of molecules or compounds.
Bond Dissociation Energies
The energy required to break a specific chemical bond in a molecule, indicating the bond's strength.
- Elucidate the principles of bond dissociation energy and its connection to the energetics of reactions.
- Assess the favorability of a reaction by considering its Gibbs free energy (ΔG), enthalpy (ΔH), and entropy (ΔS) values.
Verified Answer
ZK
Zybrea KnightAug 03, 2024
Final Answer :
B
Explanation :
Energy is released (exothermic) when bonds are formed and consumed (endothermic) when bonds are broken. Bond dissociation energies are therefore always positive and endothermic. Choice B correctly identifies these thermodynamic aspects of bond formation/dissociation.
Learning Objectives
- Elucidate the principles of bond dissociation energy and its connection to the energetics of reactions.
- Assess the favorability of a reaction by considering its Gibbs free energy (ΔG), enthalpy (ΔH), and entropy (ΔS) values.
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