What is the frequency of photons that have molar energy of 339.00 kJ/mol? (c = 3.00 × 10⁸ m/s,h = 6.63 × 10^-34 J·s,N_A= 6.02 × 10²³ mol^-1) A)5.63×10^-19 Hz B)8.49×10¹⁴ Hz C)1.69×10^-10 Hz D)5.87×10^-31 Hz E)2.83×10⁶ Hz

Question

Quizplus · Accepted Answer

The frequency of a photon can be calculated using the equation:

frequency = (energy of photon) / (Planck's constant)

First, we need to convert the molar energy given (339.00 kJ/mol) into energy per photon:

energy per photon = (339.00 kJ/mol) / (6.02 × 10^23 photons/mol) 
energy per photon = 5.63 × 10^-19 J/photon

Now we can plug in this value and Planck's constant into the equation:

frequency = (5.63 × 10^-19 J/photon) / (6.63 × 10^-34 J·s) 
frequency ≈ 8.49 × 10^14 Hz

Therefore, the best choice is B, with a frequency of 8.49×10^14 Hz.

​What Is the Frequency of Photons That Have Molar Energy

What Is the Frequency of Photons That Have Molar Energy