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Q.

The energy of one mole of photons of radiation of frequency 2×1012 Hz in J mol-1is -----. (nearest integer)
[Given : h = 6.626×10−34 Js]

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answer is 798.

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Detailed Solution

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E=Nhν=6.022×1023×6.626×10−34×2×1012=798 J/mole

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The energy of one mole of photons of radiation of frequency 2×1012 Hz in J mol-1is -----. (nearest integer)[Given : h = 6.626×10−34 Js]