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Caluculate the energy of one mole of photons of radiations whose frequency is $5 \times 10^{14} Hz$

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199.51 J/mole

19.951KJ/mole

199.51KJ/mole

19.951J/mole

answer is C.

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Detailed Solution

$E = nhϑ = 6.023 \times 10^{23} \times 6.626 \times 10^{- 34} \times 5 \times 10^{14} \times 10^{- 3} = 199.51 KJ / mole$

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