Boiling Point Determination Quiz

Which of the following is NOT required for determining the boiling point of phenol?

• Capillary tube

• Concentrated sulfuric acid

• Phenol

• Sodium chloride

What is the purpose of the thread in the setup process?

• To stir the sulfuric acid

• To seal the capillary tube

• To fix the test tube to the thermometer

• To measure the temperature

How should the capillary tube be placed in the test tube?

• With the closed end downward

• With the closed end upward

• Horizontally

• Vertically with both ends open

What indicates that the vapor pressure of the liquid has just exceeded atmospheric pressure?

• The liquid changes color

• The liquid level rises

• The liquid starts boiling

• A rapid and continuous stream of air bubbles escapes

How is the boiling point of phenol determined in this experiment?

• By observing the color change in phenol

• By measuring the temperature of the sulfuric acid bath

• By averaging the temperatures T1 and T2

• By noting the temperature when the liquid starts boiling