Bond Energy and Bond Length
Chemistry ⇒ Chemical Bonding and Structure
Bond Energy and Bond Length starts at 10 and continues till grade 12.
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See sample questions for grade 12
Arrange the following bonds in order of increasing bond length: N≡N, N=N, N–N.
Calculate the average bond energy per bond in O3 if the total energy required to break both O–O bonds is 712 kJ/mol.
Describe how electronegativity difference between two atoms affects bond energy.
Describe how resonance affects bond length and bond energy in molecules like benzene.
Describe the relationship between bond order and bond length.
Explain why F–F bond energy is lower than Cl–Cl bond energy, even though fluorine is smaller than chlorine.
Explain why the bond energy of a C≡C bond is greater than that of a C=C bond.
Explain why the bond energy of a C–H bond in ethyne (C2H2) is higher than in ethane (C2H6).
Explain why the bond length of a C–Cl bond is longer than that of a C–F bond.
Explain why the C–H bond in methane is stronger than the C–C bond in ethane.
If the bond energy of H–H is 436 kJ/mol, how much energy is required to break 2 moles of H–H bonds?
If the bond energy of O=O is 498 kJ/mol, how much energy is required to break 0.5 moles of O=O bonds?
The average bond energy of a C–O bond in CO2 is 799 kJ/mol. What is the total energy required to break both C–O bonds in one mole of CO2?
The bond energy of a C–C single bond is 348 kJ/mol, and that of a C=C double bond is 614 kJ/mol. Is the double bond exactly twice as strong as the single bond? Explain.
The bond energy of a C–H bond is approximately 413 kJ/mol. Calculate the total energy required to break all C–H bonds in one mole of methane (CH4).
The bond energy of a C–N bond is 305 kJ/mol. How much energy is required to break 3 moles of C–N bonds?
The bond energy of H–F is 565 kJ/mol. How much energy is released when one mole of H–F bonds is formed?
The bond energy of H–O in water is 463 kJ/mol. How much energy is required to break both O–H bonds in one mole of water?
The bond length of H–Cl is 127 pm, while that of H–Br is 141 pm. Which bond is stronger?
The bond length of H–F is 92 pm, and that of H–Cl is 127 pm. Which bond has a higher bond energy and why?
