A mole of photons with a frequency of 7.5 * 10¹⁶ Hz has what energy? A) 3.0 * 10^-7J/mol B) 4.2 * 10⁶J/mol C) 3.3 * 10^-8J/mol D) 3.0 * 10⁷J/mol E) 3.3 * 10⁸J/mol

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Quizplus · Accepted Answer

The energy of one photon is given by E = h * frequency, where h is Planck's constant (6.626 * 10^-34 J*s). For a mole of photons, multiply by Avogadro's number (6.022 * 10^23 mol^-1). Calculating gives approximately 3.0 * 10^7 J/mol.

A Mole of Photons with a Frequency of 7