SI Units Used For Studying “Surface Chemistry”

Surface Chemistry is the branch of chemistry that deals with properties of surfaces or phase boundaries and with chemical changes occurring at surfaces or interfaces.

In this article, I have put together all of SI Units that are used for studying Surface Chemistry. I hope that this article is useful for you.

Physical QuantityPhysical Quantity SymbolMathematical FormulaSI Unit of Physical Quantity
Specific Surface Areaa_{\mathrm{s}}, a, sa_{\mathrm{s}}=A / m\mathrm{m}^{2} \mathrm{~kg}^{-1}
Surface Anount of Bn_{\mathrm{B}}{ }^{\mathrm{s}}mol
Absorbed Amount of Bn_{\mathrm{B}}{ }^{\mathrm{a}}mol
Surface Excess Amoount of Bn_{\mathrm{B}}^{\sigma}mol
Surface Excess Concentration of B\Gamma_{\mathrm{B}},\left(\Gamma_{\mathrm{B}}^{\sigma}\right)\Gamma_{\mathrm{B}}=n_{\mathrm{B}}^{\sigma} / A\mathrm{mol} \mathrm{m}^{-2}
Total Surface Excess Concentration\Gamma,\left(\Gamma^{\sigma}\right)\Gamma=\sum_{i} \Gamma_{i}\mathrm{mol} \mathrm{m}^{-2}
Area per Moleculea, \sigmaa_{\mathrm{B}}=A / N_{\mathrm{B}}{ }^{\mathrm{a}}\mathrm{m}^{2}
Area per Molecule in a Filled Monolayera_{\mathrm{m}}, \sigma_{\mathrm{m}}a_{\mathrm{m}, \mathrm{B}}=A / N_{\mathrm{m}, \mathrm{B}}\mathrm{m}^{2}
Surface Coverage\theta\theta=N_{\mathrm{B}}^{\mathrm{a}} / N_{\mathrm{m}, \mathrm{B}}
Contact Angle\thetaradian
Film Thicknesst, h, \delta\mathrm{m}
Thickness of Layer\tau, \delta, t\mathrm{m}
Debye Length of Diffuse LayerL_{\mathrm{D}}L_{\mathrm{D}}=\kappa^{-1}\mathrm{m}
Sedimentation Coefficientss=v / a\mathrm{s}
Van der Waals Constant\lambdaJ
Surface Pressure\pi\pi=\gamma^{0}-\gamma\mathrm{N} \mathrm{m}^{-1}

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