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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Arrange the following bonds in order of increasing bond length: N≡N, N=N, N–N.
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.
Which factor does NOT affect bond length?
(1) Atomic radii
(2) Bond order
(3) Electronegativity difference
(4) Number of isotopes
Which of the following bonds has the highest bond energy?
(1) H–H
(2) O=O
(3) N≡N
(4) F–F
Which of the following bonds is the longest?
(1) C–C
(2) C=C
(3) C≡C
Which of the following factors does NOT increase bond energy?
(1) Higher bond order
(2) Smaller atomic size
(3) Greater bond length
(4) Greater electronegativity difference
Bond energy is always a ________ value because energy must be supplied to break a bond.
Bond energy is measured in units of ________.
Bond length is defined as the ________ distance between the nuclei of two bonded atoms.
Bond length is usually expressed in ________ or ________.
True or False: Bond energy is the energy released when a bond is formed.
True or False: Bond length is inversely proportional to bond energy.
True or False: The bond energy of a bond is always the same, regardless of the molecule in which it is found.
True or False: The bond energy of a single bond is always less than that of a double bond between the same two atoms.
