protein is a reporter of the folded or unfolded state of the protein. Measurements were made on a mixture of constant overall molar composition of 90.2% CO2, 5.9% n-C4, 3.9% n-C10 at pressure from 1310 psia to a near-critical dew point state at 1675 psia. This solution has the same composition throughout in which each milliliter of this solution has equal amounts of both acetone and water. For comparison, water plus liquid n-hexane, n-decane, and toluene was investigated to 473 K and 3000 bar. The surface tensions of heptane, toluene, N,N-dimethylformamide, cyclohexane, N-methyl-2-pyrrolidone, and propanone were measured as a function of temperature using the pendant drop method. What is the exposition of the story of sinigang? In the application of the density functional theory we analysed the influence of different approximations within the theory on the calculation of interfacial behaviour and optical properties.