Physics

Problem

The absorption of

275\,\text{kJ mol}^{-1}

of energy excites a sample of gaseous atoms. Using

h = 6.626\times10^{-34}\,\text{J\,s}

and

N_{\mathrm A}=6.022\times10^{23}\,\text{mol}^{-1}

, what is the frequency of the absorbed radiation? a)

1.38\times10^{15}\,\text{Hz}

6.89\times10^{14}\,\text{Hz}

6.89\times10^{13}\,\text{Hz}

6.89\times10^{15}\,\text{Hz}