Sunday, March 4, 2012

What is the longest wavelength of radiation with enough energy to break carbon-carbon bonds?

Ultraviolet radiation and radiation of shorter wavelengths can damage biological molecules because they carry enough energy to break bonds within the molecules. A carbon-carbon bond requires 348 kJ/mol to break.What is the longest wavelength of radiation with enough energy to break carbon-carbon bonds?
You can calculate the energy of a photon,



E=h*f



where E is the energy, h is Planck's constant (6.626068 脳 10-34 m^2 kg / s) and f is the frequency of the photon.



To convert between frequency and wavelength,

c=f*L



where c is the speed of light (299,792,458 m/s) and L is the wavelength.



Now you need to figure out how much energy is required to break one C-C bond. Since you are given that the the C-C bond requires 348 kJ/mol to break, you can calculate the strength of an individual bond by dividing this energy by Avogadro's number, 6.0221415 脳 10^23. This will give you the energy of breaking one C-C bond.



From the above information, you should be able to calculate the wavelength of a photon with sufficient energy to break a single C-C bond.What is the longest wavelength of radiation with enough energy to break carbon-carbon bonds?
Andrew seems to know what he's talking about id take his advice on it.
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