Properties of Liquids Quiz

What is surface tension?

• The ability of a substance to dissolve in a solvent

• The measure of a fluid’s resistance to flow

• The tendency of a fluid to acquire the least possible surface area

• The pressure exerted by a vapor in equilibrium with its liquid phase

Which of the following liquids has high viscosity?

• Ethanol

• Acetone

• Honey

• Water

What happens to viscosity as temperature increases for liquids?

• It remains the same

• It increases

• It fluctuates

• It decreases

What is the enthalpy of vaporization?

• The heat required to induce a phase change from solid to liquid

• The pressure exerted by a vapor in equilibrium with its liquid phase

• The temperature at which a substance changes from liquid to gas

• The heat required to induce a phase change from liquid to gas

Which of the following statements is true about vapor pressure?

• Vapor pressure is the same for all liquids

• Stronger intermolecular forces lead to higher vapor pressure

• Weaker intermolecular forces lead to lower vapor pressure

• Vapor pressure is independent of temperature

What does 'like dissolves like' refer to?

• Polar solutes dissolve in non-polar solvents

• Non-polar solutes dissolve in polar solvents

• Solutes and solvents with similar intermolecular forces form solutions

• All solutes dissolve in all solvents

What is the boiling point?

• The measure of a fluid’s resistance to flow

• The pressure exerted by a vapor in equilibrium with its liquid phase

• The temperature at which a substance changes from liquid to gas

• The temperature at which a substance changes from gas to liquid

Which of the following is an example of a hydrophobic substance?

• Sugar

• Ethanol

• Salt

• Hexane

What is cohesion?

• The tendency of a fluid to acquire the least possible surface area

• Attraction between like molecules

• Attraction between unlike molecules

• The measure of a fluid’s resistance to flow

Which of the following liquids is likely to have the highest boiling point?

• H2Se

• H2Te

• H2S

• H2O