Ultraviolet radiation and radiation of shorter wavelengths can damage biological molecules because they carry enough energy to break bonds within the molecules. a typical carbon–carbon bond requires 348 kj> mol to break. what is the longest wavelength of radiation with enough energy to break carbon–carbon bonds?

Longest wavelength :3.44 x 10⁻⁷ m

Explanation:

The  maximum wavelength of the radiation  with enough energy to break carbon to carbon bonds will be given by:

                        E= hc/λ    where h is Plancks constant for one photon,

                                                     c speed of light

                                                      E enrgy required  per mol

One has to be careful in this problem to either multiply Planck`s constant by Avogadro's  number to obtain the energy of a mol of photons or convert the given required energy  per mol to energy per atom.

Substituting in our equation and doing the calculations:

λ = hc/E

λ = 6.626 x 10⁻³⁴ Js /mol x 3 x 10^8 m/s  x 6.022 x 10²³8 mol  / ( 3.48 x 10⁵ J    =  3.44 x 10⁻⁷ m = 3440 nm which corresponds to the Infrared part of the spectrum.

hey there!

boiling point is the temperature at which the vapor pressure of the liquid equals atmospheric pressure. the vapor pressure of solvent molecules is decreased when a solute is added, so a higher temperature is required to increase the number of solvent molecules in the gas phase above the liquid.

at the freezing point, the vapor pressures of the solid and liquid are equal; a lower temperature is needed to reduce the number of solvent particles above the liquid.

hope this you

tobey