What is the longest wavelength of radiation that possesses the necessary energy to break the o-o bond?
1 answer:
Answer:
The longest wavelength of radiation is 241nm and it lies in ultraviolet region.
Explanation:
The minimum energy required to break o-o bond is 495kJ/mole.
The photon does not have mass and the energy of the single photon depends entirely on the wavelength and is given by
e =hc/λ
where, h is the Planck constant,
c is the speed of light
e is the energy of photon
λ is the wavelength
From the Planck formula we can understand that energy of the photon is quantized.
E = e.Nₐ
e = E/Nₐ = = 8.22*10⁻¹⁹ J/photon
λ = hc/E=
λ = 2.41*10⁻⁷ m = 241 nm
The longest wavelength of radiation is 241nm and it lies in ultraviolet region.
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Answer:
10,000 eV
Explanation:
According to the law of conservation of energy, the kinetic energy gained by the electron is equal to its change in electric potential energy:
where:
K is the kinetic energy of the electron
is the magnitude of the charge of the electron
is the potential difference through which the electron has been accelerated
For this electron in the TV, we have
Therefore, the kinetic energy of the electron in electronvolts is