What will happen to the solubility of sulfur dioxide gas in water as the tempera

Question

What will happen to the solubility of sulfur dioxide gas in water as the temperature of water goes down? Explain your answer. Why? List the following compounds from weakest acid (on the left) to strongest acid on the right. CH_3NH_3CI HI HIO_3 H_2 HSeO_3 Compound X has a critical point at 75 atm, 270 degree C and a triple point at 1.9 atm, -29 degree C. Its solid is more dense than its liquid. Draw the phase diagram for this substance, labeling the phase regions. What will happen to this substance if, beginning at a temperature of 20 degree C and a pressure of 4.0 atm one lowers the pressure? Draw a line on your phase diagram representing this change.

Explanation / Answer

Ans 18.

Gases are more soluble in water at lower temperatures.

At higher temperatures , the molecules of SO2 gas gain kinetic energy , that helps them to overcome their already weak intermolecular attractions . As these interactions are broken , the molecules becomes pretty free so as to leave the surface of the liquid in release in the atmosphere.

So as the temperature goes down , molecules have less energy and hence they are more soluble in water .

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