The critical point of a mixture is located at the peak of th

The critical point of a mixture is located at the peak of the graph always True or False and why? Answer 4. Define the fraction of liquid phase at points 4, 5 (Figure 2) Variants: 0%; 25%; 50%; 75%; 95%; 100% Answer:

Solution

3. From the Graph we can see that crtical points are top most or peak points.

At those peak point the lalent heat of vapourization is nearly equal to Zero (h_fg = 0) . Or  the end point of the pressure-temperature curve that designates conditions under which a liquid and its vapor can coexist. At the critical point, defined by a critical temperature T_c and a critical pressure p_c, phase boundaries vanish.

4. From the graph Point four is near to Saturated liquid line so the liquid content will be more 95%

The point 5 is located right side of the saturated vapor line , So the liquid content is 0%