(Left) TPD curves of SO₂ deposited at 80 K on gold at different coverages (brown curve, 4.52 ML; red curve, 2.14 ML) in the multilayer regime, together with the corresponding zeroth-order fits (dashed blue and green lines, respectively). (Right) Logarithm of the corresponding TPD curves as a function of the inverse sample temperature, with corresponding linear fits (dashed lines). The adsorption energy and preexponential factor for SO₂ multilayer desorption are extracted from the slope and intercept of the linear regression.