Exploring Factors Influencing Solubility

The video explores factors affecting solubility, including stirring, temperature, particle size, and pressure. It explains why some substances dissolve in water while others do not, using examples like sand and salt. Stirring increases solubility rate, temperature affects solids and gases differently, smaller particles dissolve faster, and pressure impacts gas solubility. The video also highlights that gases can dissolve in water, as seen in carbonated drinks.

What happens when sand is mixed with water?

• It evaporates with water.

• It dissolves completely.

• It floats on the surface.

• It settles at the bottom.

What is true about the solubility of air in water?

• Air dissolves well in water.

• Only oxygen dissolves in water.

• Water becomes less dense when air dissolves in it.

• Air does not dissolve in water.

What is the solubility of gases in water as temperature increases?

• Decreases

• First increases then decreases

• Remains the same

• Increases

What effect does stirring have on the solubility of a solid in a liquid?

• Decreases solubility

• No effect

• Increases the rate of solubility

• Changes the color of the solution

What is the result of increasing the temperature on the solubility of solids in water?

• Increases solubility

• Decreases solubility

• Solids become gases

• No effect

What happens to the solubility of gases in water as temperature increases?

• It increases.

• It decreases.

• It remains constant.

• It fluctuates unpredictably.

Why is granulated sugar used in tea and coffee?

• It dissolves faster due to smaller particle size.

• It is sweeter than regular sugar.

• It does not dissolve, leaving a crunchy texture.

• It changes the color of the tea or coffee.

How does pressure affect the solubility of gases in liquids?

• Only affects solids, not gases

• Increases with higher pressure

• Decreases with higher pressure

• No effect

Why does soda go flat when left open?

• Pressure decreases, reducing CO2 solubility

• It absorbs oxygen from the air

• Water evaporates, leaving sugar behind

• Carbon dioxide evaporates

Which factor has little to no effect on the solubility of solids in a solution?

• Pressure

• Stirring

• Particle size

• Temperature