Name the physical property behind rise of liquids in capillary tube.
Define aqueous tension. Why is it subtracted from the total pressure to determine the pressure of a dry gas?
What is evaporation? How does it differ from boiling?
Define coefficient of viscosity. How coefficient of viscosity is related with viscous force?
Why is Glycerine more viscous than water?
Why is a mercury droplet spherical?
In terms of vapour pressure, what do you mean by a boiling point of a liquid?
The meniscus for mercury in a glass tube is concave downward. Explain.
What do you understand by viscosity?
What is the efect of temperature on: (a) Surface tension (b) Viscosity (c) Vapour pressure of liquid
What do you understand by the term ‘surface tension’?
How is surface tension of a liquid originated?
Define Van’t Hoff’s factor. What for it used?
What do you mean by boiling point and evaporation?
Give reason:
a) Falling liquid drops are spherical
b) Evaporation takes place from the surface of liquid
c) It is more efficient to wash clothes in hot water than cold water.
What happens to the vapour pressure of a solvent, when non volatile solute particles are dissolved in it?
Define the term coefficient of viscosity?
Why does boiling point of liquid rise on increasing pressure?
Mention physical properties of liquid due surface tansion.
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