- #1
crays
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Hi, I've a question that shows me a diagram for wavelength, there's 4 of them
11.1 x 106
10.5 x 106
9.7 x 106
8.4 x 106
then it asked me to determine the ionisation energy of hydrogen in KJ mol-1 by using the above spectrum.
From what i know
E = hf
f = c/lambda
lambda being the wavelength
The equation should be using the largest frequency so i should pick the shortest wavelength right? which is 8.4 x 106
But the calculation behind uses the value of 11.1 x 106 . Can anyone explain?
11.1 x 106
10.5 x 106
9.7 x 106
8.4 x 106
then it asked me to determine the ionisation energy of hydrogen in KJ mol-1 by using the above spectrum.
From what i know
E = hf
f = c/lambda
lambda being the wavelength
The equation should be using the largest frequency so i should pick the shortest wavelength right? which is 8.4 x 106
But the calculation behind uses the value of 11.1 x 106 . Can anyone explain?