Exercise 6. estimate the k-values and a of a vapour-liquid mixture of water (w) and methane (m) at p = 2 atm, t = 20 and 80°c. what is the effect of t on the component distribution? at these conditions, water exists mainly in the liquid phase and will follow raoult's law. because methane has a critical temperature of -82.5 °c, well below the temperatures of interest, it will exist mainly in the and follow henry's law. table 1: from perry's chemical engineers’ handbook, 6th ed. pp. 3-237 and 3-103 t[°c] 20 pwater (atm) | 0.02307 0.4673 hch. [atm] 3.76.104 6.82 · 104 80