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Excited mercury atoms emit light strongly at a wavelength of 436 nm. A.what is t

ID: 858379 • Letter: E

Question

Excited mercury atoms emit light strongly at a wavelength of 436 nm. A.what is the energy in Joules for one photon of this light? B.what is the energy in kJ/mol per mole for a mole of photons of this light? Excited mercury atoms emit light strongly at a wavelength of 436 nm. A.what is the energy in Joules for one photon of this light? B.what is the energy in kJ/mol per mole for a mole of photons of this light? A.what is the energy in Joules for one photon of this light? B.what is the energy in kJ/mol per mole for a mole of photons of this light?

Explanation / Answer

(A)

Energy of 1 photon = h*c/lambda = 6.626*10^*-34*3*10^8/(436*10^(-9))=4.6*10^(-19) joule

(B)

Energy of 1 mole of photon = 4.6*10^(-19)*6.023*10^23 = 277*10^3j=277kj/mol