What is the frequency of an electromagnetic wave (EM) which has an energy of 217 KJ?
use the equation
E=hv
E=energy of wave
h=6.63x10^-34
v=frequency (waves per second)
is the answer 3.3x10^-30?
or is it 3.3x10^-33?
2006-09-27 17:28:17 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
umm.. i think it's
6.63x10^-34 seconds
in the book, it says its joule-second.
2006-09-27 17:38:13 · update #1
It depends on the units involved. But a safe bet is that the energy of 217 KJ should be written as 217000 Joules. What are the units of the h parameter?
2006-09-27 17:32:11 · answer #1 · answered by rscanner 6 · 0⤊ 0⤋
v=E/h
217000j divided by6.63X10^ -34 js (unit - j cancels out)
= 3.27 X 10^ 38 s
wow...big difference...i don't know
2006-09-28 00:49:10 · answer #2 · answered by Jacqueline 2 · 0⤊ 0⤋