Respuesta :
Answer:
The maximum wavelength of light for which a carbon-carbon triple bond could be broken by absorbing a single photon is 143 nm.
Explanation:
It takes 839 kJ/mol to break a carbon-carbon triple bond.
Energy required to break 1 mole of carbon-carbon triple bond = E = 839 kJ
E = 839 kJ/mol = 839,000 J/mol
Energy required to break 1 carbon-carbon triple bond = E'
[tex]E'=\frac{ 839,000 J/mol}{N_A}=\frac{839,000 J}{6.022\times 10^{23} mol^{-1}}=1.393\times 10^{-18} J[/tex]
The energy require to single carbon-carbon triple bond will corresponds to wavelength which is required to break the bond.
[tex]E'=\frac{hc}{\lambda }[/tex] (Using planks equation)
[tex]\lambda =\frac{6.626\times 10^{-34} Js\times 3\times 10^8 m/s}{1.393\times 10^{-18} J}[/tex]
[tex]\lambda =1.427\times 10^{-7} m =142.7 nm = 143 nm[/tex]
[tex](1 m = 10^9 nm)[/tex]
The maximum wavelength of light for which a carbon-carbon triple bond could be broken by absorbing a single photon is 143 nm.
