Saturday, February 25, 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 to break.What is the longest wavelength of radiation with enough energy to break carbon-carbon bonds?
344 nm.



e=hc/lambda

348kj/mol = 348000 j/mol

divide by avogadro's number to get 5.78x10^-19 J to break one bond, set this equal to e



5.78x10^-19 = (6.626x10^-34)(3.00x10^8)/lambda



from there i'ts pretty straightforward...

lambda = 344 nmWhat is the longest wavelength of radiation with enough energy to break carbon-carbon bonds?
i think beta radiation can break them

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