For the solution of the gases w, x, y and z in water at 298 K, the Henry's law constants () are 0.5, 2, 35 and 40 kbar, respectively. The correct plot for the given data is:

(1)

(2)

(3)

(4)

Question

For the solution of the gases w, x, y and z in water at 298 K, the Henry's law constants () are 0.5, 2, 35 and 40 kbar, respectively. The correct plot for the given data is:

(1)

(2)

(3)

(4)

Canvas Classes · Accepted Answer

Strategy:
 According to Henry's Law , a plot of partial pressure () vs mole fraction () is a straight line with slope . Compare the values of  to determine the relative steepness of the lines for different gases.

Step 1: Sort by slope ()
-  (Lowest slope, most shallow)
- 
- 
-  (Highest slope, steepest line)

Step 2: Select the correct graph
Graph (1) correctly shows the slopes increasing in the sequence w < x < y < z. Note that for a given pressure,  will be the most soluble (highest ) while

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