Question:
Which of the following will increase with the increase in temperature ?
Which of the following will increase with the increase in temperature ?
Updated On: Jun 20, 2022
- Surface tension
- Viscosity
- Molality
- Vapour pressure
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The Correct Option is D
Solution and Explanation
As the temperature rises, the kinetic energy of the molecules increases. Due to which the molecules can leave the liquid surface easily. In other words the vapour pressure increases. However, surface tension and viscosity decrease with rise in temperature. Molality is the ratio of moles of solute to weight of solvent, hence it does not depend upon the temperature.
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Concepts Used:
Liquid State
The liquid state of matter has the following properties:
- As the particles moves it start moving everywhere inside the volume filled by the liquid.
- Liquids have a strong inter-particle force, more inter-particle space than solids and enough kinetic energy.
- It can be transformed into solids due to the solidification process.
- Evaporation is the conversion of liquids to gases.
- Liquid particles begin to flow more quickly when the temperature rises.
- Liquids are difficult to compress because there is less space between particles for particles to migrate.
- Constant volume but no constant shape.
- In liquids, the rate of diffusion is faster than in solids.
- Inter molecular attraction between particles is weaker than that between solids.
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