1.3.2. Capillarity Height

Try these first

1. 1.

   What is capillarity?

   Hint

   Think about how liquids behave in thin tubes.

2. 2.

   What effect does diameter have on capillary height?

   Hint

   Refer to the formula discussed earlier.

3. 3.

   What does capillarity refer to?

   • Fluid movement against gravity
   • Heat transfer
   • Sound waves
   • Electrical currents

   Hint

   Think about how liquids travel in thin tubes or soil.

4. 4.

   True or False: A higher contact angle always increases capillary height.

   • True
   • False

   Hint

   Consider the implications of wetting versus non-wetting.

5. 5.

   Calculate the capillary rise of water in a tube with a diameter of 2mm, where the surface tension is 0.072N/m, the contact angle is 0 degrees, and the liquid density is 1000kg/m^3.

   Hint

   Plug the values into the capillary rise formula and simplify.

6. 6.

   Discuss how changing the surface tension and contact angle affects the height of fluid in various applications.

   Hint

   Consider practical scenarios, like how different liquids behave in the same plant system.