HW Question 1.23
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Danielle Sumilang - 1F
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HW Question 1.23
The question gives the energy of the photons as 140.511 keV. How do I convert it to joules? The solutions manual says to multiply (140.511 x 10^3 eV)(1.6022 x 10^-19 J x eV^-1) but I don't understand where the numbers came from. Thank You!
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Chem_Mod
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Re: HW Question 1.23
Hello Danielle,
Electron-volts (eV) and Joules (J) are both units of energy. 1 eV is equivalent to 1.6e-19 J - that just so happens to be the amount of energy required to move an electron against an electric potential difference of 1 V (you don't need to worry about the definition of eV).
Hope this helps!
Electron-volts (eV) and Joules (J) are both units of energy. 1 eV is equivalent to 1.6e-19 J - that just so happens to be the amount of energy required to move an electron against an electric potential difference of 1 V (you don't need to worry about the definition of eV).
Hope this helps!
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