The superheat limit temperatures of n-alkane-surfactant-water emulsion systems have been measured by using the liquid column method.

The liquid superheat limit and critical radius of bubbles in homogeneous nucleateboiling are determined in the present paper by using density fluctuation theory of statistical theomodynamics.

The result is that the theoretical superheat limit of the liquid is the temperature at the critical point.

The liquid superheat limit and vapor subcooling limit in homogeneous nucleation are determined in the present paper by using density fluctuation theory of statistical thermodynamics.

On the basis of these phase diagrams,the superheat limit temperatures of these systems with k_m=0.

This paper discusses the mechanism of metastable state of pure substances from the molecular theory and derives the calculation formula of superheat limits of liquid from the cubic equation of state.

The prediction of thermodynamic theoretical limit of superheat;

Prediction of homogeneous nucleation superheat limits of pure liquids using molecular interaction model;

Theoretical study and prediction of the superheat limits of liquid mixtures;

The relation between the superheating limits and the critical temperatures was then deduced by applying the P-R equation of state to the limit of stability and the constants of k s expression in the P-R equation of state were further modified.

Using injection method, the superheating limits of ten systems of binary hydrocarbon mixtures (alkene and alkane or between alkene), which have not been reported, were measured at normal pressure in this thesis.