Measuring Surface Tension Using Capillary Rise Method

The video tutorial demonstrates how to determine the surface tension of water using the capillary rise method. It begins with an introduction to the experiment's aim and the necessary equipment. The setup involves a retort stand, beaker, capillary tube, and a travelling microscope. The video details the process of adjusting the microscope to measure the meniscus and calculate H1 and H2. It further explains how to analyze the capillary tube and record readings. Finally, the surface tension is calculated using the gathered data, resulting in a value of 0.07275 newton.

What is the primary aim of the experiment discussed in the video?

• To calculate the viscosity of water

• To determine the boiling point of water

• To find the surface tension of water

• To measure the density of water

Which piece of equipment is used to hold the beaker in place during the experiment?

• Retort stand

• Pointer

• Fork

• Wooden stand

What is the purpose of the travelling microscope in this experiment?

• To measure the temperature of water

• To observe the capillary rise

• To calculate the volume of water

• To determine the color of water

How is the microscope adjusted to make the water meniscus visible?

• By rotating the screw clockwise

• By moving the microscope down

• By rotating the screw anticlockwise

• By moving the microscope up

What is calculated using the main scale and vernier scale readings?

• The temperature of water

• The density of water

• The volume of water

• H1 and H2

What is the next step after calculating H1 and H2?

• Calculate the capillary rise edge

• Remove the capillary tube

• Measure the temperature

• Adjust the microscope

What is the purpose of placing the capillary tube horizontally on the adjustable stand?

• To measure the length of the tube

• To observe the water level

• To calculate the diameter

• To focus on the inner circle

How is the internal diameter of the capillary tube determined?

• By using the main scale reading

• By measuring the water level

• By calculating the total reading

• By observing the meniscus

What is the final calculation performed in the experiment?

• The surface tension of water

• The boiling point of water

• The viscosity of water

• The density of water

What is the surface tension of water as determined in the experiment?

• 0.05275 newton

• 0.06275 newton

• 0.08275 newton

• 0.07275 newton