## ajprincess Group Title Please help:) In an HCl molecule, we assume Cl to be of very heavy mass and H alone oscillating. If the oscillation of the HCl molecule shows a frequency of 9.1949*10^13 Hz, deduce the force constant. given:Avogadro constant=6*10^26 per Kgmol. one year ago one year ago

1. lilfayfay Group Title

isnt this chemistry?

2. lilfayfay Group Title

ur on the physics section xD

3. ajprincess Group Title

ya I am on physics sec cos this question comes under shm @lilfayfay

4. ajprincess Group Title

5. mahmit2012 Group Title

i dont know chem!

6. ajprincess Group Title

this come under physics. simple harmonic motion.

7. lilfayfay Group Title

ohh it looked like chem lol xD

lol I'm curious. The force constant is that of G?

9. Carl_Pham Group Title

$\omega = \sqrt{\frac{k}{\mu}}$ where k is the force constant and mu is the reduced mass. You're essentially told to approximate the reduced mass as the mass of the H atom alone, because it's about 35x lighter than the Cl atom.

10. ajprincess Group Title

Thanx a lot:)