4. States of Matter
Properties Of Liquids — Quiz
Test your understanding of properties of liquids with 5 practice questions.
Practice Questions
Question 1
A liquid has a viscosity of $3.0 \, \text{Pa}\cdot\text{s}$ at $25^\circ\text{C}$. If the viscosity decreases to $1.5 \, \text{Pa}\cdot\text{s}$ at $45^\circ\text{C}$, what is the percentage decrease in viscosity?
Question 2
Which of the following best describes the effect of adding salt to water on its vapor pressure?
Question 3
A liquid has a surface tension of $0.072 \, \text{N/m}$ at $20^\circ\text{C}$. If the temperature is increased to $40^\circ\text{C}$, and the surface tension decreases by $10\%$, what is the new surface tension?
Question 4
Which of the following factors has the greatest impact on the vapor pressure of a liquid at a given temperature?
Question 5
A liquid has a vapor pressure of $60 \, \text{torr}$ at $25^\circ\text{C}$. If the temperature is increased by $20^\circ\text{C}$ and the vapor pressure doubles, what is the new vapor pressure?