5.42. For the reaction 2Na (g) = Na₂ (g) the following values of K have been determined (C. T. Ewing et al., J. Chem. Phys. 1967, 71, 473): T(K) 900 1000 1100 1200 K 1.32 0.47 0.21 0.10 From these data, estimate AxnHº for the reaction. (Hint: using the function of linear regression to solve the problem)

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Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.