A reasonably general expression for vapour-liquid phase equilibrium at low to moderate pressure is Φ_i y_i P = Y_i x_i f_i° where, Φ is a vapor fugacity component, Y_i is the liquid activity co-efficient and f_i° is the fugacity of the pure component i. the K_i value (Y_i = K_i x_i) is therefore, in general a function of

Sublimation temperature of dry ice (solid CO₂) is __________ °C.

The equation relating E, P, V and T which is true for all substanes under all conditions is given by $${\left( {\frac{{\partial {\text{E}}}}{{\partial {\text{V}}}}} \right)_{\text{T}}} = {\text{T}} \cdot {\left( {\frac{{\partial {\text{P}}}}{{\partial {\text{T}}}}} \right)_{\text{H}}} - {\text{P}}{\text{.}}$$      This equation is called the

Henry's law is closely obeyed by a gas, when its __________ is extremely high.

If an ideal solution is formed by mixing two pure liquids in any proportion, then the __________ of mixing is zero.