11. Bonding & Molecular Structure

Predict whether the following reactions will be exothermic or endothermic.

Which of the following best describes bond dissociation energy?

Use bond energies to estimate the enthalpy change for the formation of HBr(g) from H2(g) and Br2(g). Given: BE(H-H) = 436 kJ/mol, BE(Br-Br) = 192 kJ/mol, BE(H-Br) = 366 kJ/mol.

Which of the following bonds has the longest bond length?

What is the bond energy per mole required to break all the bonds in a molecule of oxygen (O_2) under standard conditions?

Given the following average bond energies: C=O (double bond): 799 kJ/mol, C=S (double bond): 573 kJ/mol, and O=S (double bond): 523 kJ/mol, what is the apparent bond energy of the carbon–sulfur bond in carbonyl sulfide (COS)?

Which of the following bonds has the highest bond energy (is the strongest)?

Based on the given bond energies, which of the following reactions is expected to be most exothermic?

Which sequence below represents the proper order of increasing bond strength?

Which of the following factors primarily determines the bond length between two atoms in a molecule?

Which of the following covalent bonds is the longest?

Given that the enthalpy change (ΔH) for the formation of H2O(g) from its elements is -926.29 kJ/mol, what is the approximate bond energy of the O-H bond in water?

Which of the following statements correctly describes bond energy?

Which of the following molecules has the shortest bond length?