12 Questions
What is the main factor on which capillary properties depend?
Difference in cohesion and adhesion forces
Why does water rise inside a capillary tube?
Because the force of cohesion overcomes the force of adhesion
Why is the water inside a capillary tube higher than mercury?
Mercury has greater density than water
What is the force that leads to the rise of liquid molecules inside a capillary tube?
Force of adhesion
What should be measured to account for changes in surface tension during capillary action?
Inner radius of the capillary tube
Which step in the method of work is crucial for understanding capillary action?
Step 2: Immersing the lower end of the capillary tube vertically into the beaker containing the water
What is the purpose of the experiment mentioned in the text?
To calculate the surface tension of water using the capillary tube method.
Which tool was NOT used in the experiment to calculate surface tension?
Bunsen burner.
What is the definition of surface tension as provided in the text?
The property of liquid surface behaving like an elastic film.
Why does surface tension occur in water according to the text?
Resultant force on liquid surface is not zero, unlike inside the liquid.
How do cohesive forces contribute to surface tension?
By causing forces between different molecules of matter.
What factor does NOT influence surface tension according to the text?
Pressure.
This quiz covers the concept of surface tension, focusing on the calculation using the capillary tube method. Topics include properties of surface tension, tools used in the experiment, and examples of surface tension phenomena like insects walking on water and a needle floating on the surface.
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