Solubility and Temperature Relationships

The video tutorial by Miss Kolkata introduces solubility curves, explaining how they represent the solubility of solids and gases in liquids as temperature changes. Solubility curves for solids typically slope upwards with increasing temperature, while those for gases slope downwards. The tutorial covers how to interpret these curves to determine if a solution is unsaturated, saturated, or supersaturated. Practical examples and calculations are provided to illustrate these concepts, including how to use solubility curves to solve real-world problems.

What is common between solubility curves for solids and gases?

• Both have solute amount on the x-axis

• Both have temperature on the y-axis

• Both have solute amount on the z-axis

• Both have temperature on the x-axis

As temperature increases, what happens to the solubility of solids in liquids?

• It decreases

• It fluctuates

• It remains constant

• It increases

How does the solubility of gases in liquids change with increasing temperature?

• It increases

• It decreases

• It fluctuates

• It remains constant

What does it mean if a point on a solubility curve is below the line?

• The solution is saturated

• The solution is unsaturated

• The solution is supersaturated

• The solution is diluted

If a point is on the solubility curve line, what is the state of the solution?

• Unsaturated

• Supersaturated

• Diluted

• Saturated

In the example of KCl, what does it mean if the point is below the line at 80 degrees?

• The solution is saturated

• The solution is unsaturated

• The solution is supersaturated

• The solution is diluted

For KNO3, if the point is above the line at 60 degrees, what is the state of the solution?

• Unsaturated

• Saturated

• Supersaturated

• Diluted

How many grams of potassium nitrate will dissolve in 300 grams of water at the same temperature?

• 320 grams

• 240 grams

• 160 grams

• 80 grams

What happens to the solubility of potassium nitrate when the temperature drops from 50 degrees to 10 degrees?

• It fluctuates

• It remains constant

• It decreases

• It increases

How many grams of potassium nitrate will precipitate out when cooled from 50 degrees to 10 degrees?

• 20 grams

• 80 grams

• 40 grams

• 60 grams