抄録
An investigation of surface tension has been done on the basis of the following assumptions: (i) There is an analogy between surface formation and vaporization. (ii) The surface tension as a function of temperature is given by the equation, γ∝(1−T⁄Tc)B where Tc is the critical temperature and B is the exponent.
Based on the above assumptions the relations among the quantities participating in surface formation are considered. Then the following expressions for the relations are determined by statistical analysis of experimental data: (1) The surface entropy is given by the equation, s=0.1S where S is the specific vaporization entropy in J/(m2·K), defined as the vaporization entropy per unit area of the mono-atomic layer in bulk. (2) The surface tension is given by the equation, r=1.536×104S1.62 where γ is the surface tension in N/m. (3) The surface tension is given by the equation, γ=0.152+4.61×10−4EV⁄V2⁄3 where EV is the formation energy of a vacancy in eV and V is the atomic volume in m3.
