Boiling Point of Water Experiment

The video tutorial explains how to determine the boiling point of water using a boiling tube, thermometer, and Bunsen burner. It outlines the materials needed, preparation steps, and the process of heating water to observe temperature changes. The boiling point is determined by averaging the initial and constant temperatures observed during the experiment.

What is the purpose of using pumice stones in the boiling tube?

• To avoid bumping while boiling

• To prevent water from evaporating

• To increase the boiling point of water

• To cool down the water

Where should the bulb of the thermometer be placed in the boiling tube?

• Outside the boiling tube

• At the bottom of the boiling tube

• 3-5 cm above the water surface

• Directly touching the water surface

What happens to the water when it starts boiling?

• It remains as liquid

• It evaporates into steam

• It changes color

• It turns into ice

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

• By averaging the initial and constant temperatures

• By observing the color change of water

• By measuring the final temperature only

• By measuring the initial temperature only

What is the boiling point of water as determined in this experiment?

• 105°C

• 100°C

• 95°C

• 90°C