Title: Q7 set - k

Q: Match the following molecules with the wavenumber of their stretch mode.

Hint: evaluate their bond orders (ie single=1, double bond=2, etc)
and what this implies about their relative bond strengths.
Consider the effect that force constant, k, has on vibrational frequencies.
- oxygen, O_2 | 1556 cm-1
- nitric oxide, NO | 1876 cm-1
- nitrogen, N_2 | 2330 cm-1

Q: Match the following diatomic molecules with the wavenumber of their stretch mode.

Hint: These molecules all have similar reduced masses, μ, so it is the trend in force constant, k, that is important. Evaluate their bond orders (ie 1=single bond,
2= double bond,3= triple etc) and what this implies about their relative bond strengths.

 [Image: equation for vibrational frequency]
- FCl | 774 cm-1
- OS | 1138 cm-1
- NP | 1323 cm-1

Q: Match the following diatomic molecules with the wavenumber of their stretch mode.

Hint: These molecules all have similar reduced masses, μ, so it is the trend in force constant, k, that is important. Evaluate their bond orders (ie 1=single bond,
2= double bond,3= triple etc) and what this implies about their relative bond strengths.

[Image: equation for vibrational frequency]
- oxygen, O_2 | 1556 cm-1
- nitric oxide, NO (bond order 2.5) | 1876 cm-1
- nitrogen, N_2 | 2330 cm-1

Q: Match the following molecules with the wavenumber of their stretch mode.

Hint: evaluate their bond orders (ie single=1, double bond=2, etc)
and what this implies about their relative bond strengths.
Consider the effect that force constant, k, has on vibrational frequencies.
- oxygen, O_2 | 1556 cm-1
- nitrous oxide, NO | 1876 cm-1
- nitrogen, N_2 | 2330 cm-1

Q: Match the following molecules with the wavenumber of their stretch mode.

Hint: evaluate their bond orders (ie single=1, double bond=2, etc)
and what this implies about their relative bond strengths.
Consider the effect that force constant, k, has on vibrational frequencies.
- FCl | 774 cm-1
- OS | 1138 cm-1
- NP | 1323 cm-1