Turn on thread page Beta
    • Thread Starter
    Offline

    1
    ReputationRep:
    Hey,

    I'm assuming this is Physics anyhow, would someone be able to explain how to sort this problem out.


    C12-H1 bond vibrates at a wavenumber of 3270cm-1, what would be the frequency if H1 was replaced by Deuterium (H2)


    Do I use this equation; F= c / wavelength or f =1/2nc√(k/u) or neither and I'm going the wrong way around it?!
    Offline

    2
    ReputationRep:
    (Original post by Heather_1)
    Hey,

    I'm assuming this is Physics anyhow, would someone be able to explain how to sort this problem out.


    C12-H1 bond vibrates at a wavenumber of 3270cm-1, what would be the frequency if H1 was replaced by Deuterium (H2)


    Do I use this equation; F= c / wavelength or f =1/2nc√(k/u) or neither and I'm going the wrong way around it?!
    I'm guessing you're assuming the vibration undergoes SHM in which case  \nu = \frac{1}{2 \pi}\sqrt\frac{k}{\mu} where \nu is frequency and \mu is the reduced mass.

    I think the wavenumber is given by \frac{\nu}{c}
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: August 3, 2009

1,934

students online now

800,000+

Exam discussions

Find your exam discussion here

Poll
Should predicted grades be removed from the uni application process

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reply
Hide
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.