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Chemistry · Structure of atom
हिन्दीCalculate the energy of one mole of photons of radiation whose frequency is \( 5 \times 10^{14}\text{ Hz} \). (Given \( h = 6.626 \times 10^{-34}\text{ J s} \), \( N_A = 6.022 \times 10^{23}\text{ mol}^{-1} \))
Correct answer · Option 1
199.51 kJ mol\( ^{-1} \)
Explanation
Energy per mole \( E = N_A h \nu = (6.022 \times 10^{23}) \times (6.626 \times 10^{-34}) \times (5 \times 10^{14}) = 199510\text{ J mol}^{-1} \approx 199.51\text{ kJ mol}^{-1} \).
