GRE Exam > GRE Videos > Chemistry for GRE Paper II > Properties of Liquids
Properties of Liquids Video Lecture | Chemistry for GRE Paper II
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FAQs on Properties of Liquids Video Lecture - Chemistry for GRE Paper II
| 1. What are the physical properties of liquids? |  |
Ans. Liquids have several physical properties, including the ability to flow and take the shape of their container, relatively high density compared to gases, and a fixed volume that is independent of the shape of the container they are in. Liquids also have a definite boiling point and can evaporate into gases at temperatures below their boiling point.
| 2. How does surface tension affect liquids? | |
Ans. Surface tension is a property of liquids that arises due to the cohesive forces between the liquid molecules at the surface. It causes the surface of a liquid to behave like a stretched elastic sheet, resulting in phenomena such as capillary action and the formation of droplets. Surface tension also affects the shape of liquid interfaces, such as the curved meniscus in a glass of water.
| 3. What is viscosity and how does it vary among liquids? | |
Ans. Viscosity is a measure of a liquid's resistance to flow. It is influenced by factors such as the size and shape of the liquid molecules, intermolecular forces, and temperature. Liquids with higher viscosity flow more slowly, while those with lower viscosity flow more easily. For example, honey has a higher viscosity compared to water, which explains why it flows more slowly.
| 4. How do liquids differ from gases in terms of compressibility? | |
Ans. Liquids are highly incompressible compared to gases. This means that their volume does not change significantly even under high pressures. Gases, on the other hand, are highly compressible, and their volume can be greatly reduced under pressure. This difference is due to the closer arrangement and stronger intermolecular forces in liquids, which restrict their ability to be compressed.
| 5. Can liquids exhibit different phases or states of matter? | |
Ans. Yes, liquids can exist in different phases or states of matter. The most common phase transitions for liquids are freezing (solidification) and boiling (vaporization). When a liquid is cooled below its freezing point, it transitions into a solid. Conversely, when a liquid is heated above its boiling point, it transitions into a gas. These phase transitions are characterized by changes in the arrangement and movement of the liquid molecules.
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Nov 22, 2024 Last updated |
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