An electronically excited state of Hg can be quenched by N, according to
Hg* (g) + Nz (g, V = 0) -7 Hg (g) + N, (g, v = 1) in which energy transfer from Hg* excites Nz vibrationally. Fluorescence lifetime measurements of samples of Hg with and without Nz present are summarized below (T= 300 K):

You may assume that all gases behave ideally. Determine the rate constant for the energy transfer process.

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Py. =0.0 atm Relative fluorescence intensity 1.000 0.135 0.606 5.0 0.360 0.22 20.0 t/us 10.0 10.0 15.0 15.0 0.0 PN, =9.74 x 10 atm Relative fluorescence intensity t/us 0.342 0.585 0.342 1.000 0.0 0.200 0.117 3.0 6.0 9.0 12.0