Name the process by which liquid vapour changes into solid forma)evapo...
When the excess water vapour condenses directly into solid form it is known as sublimation.
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Name the process by which liquid vapour changes into solid forma)evapo...
Condensation: The Process of Liquid Vapor Changing into Solid Form
Introduction:
Condensation is the process by which a substance in its gaseous state changes into its liquid or solid state. This transformation occurs when the temperature of the substance decreases, causing its particles to lose energy and move closer together, resulting in the formation of a liquid or solid.
Key Points:
- Liquid vapor refers to the gaseous state of a substance.
- Condensation involves the conversion of liquid vapor into either a liquid or solid form.
- The temperature decrease is the primary factor leading to the condensation process.
Explanation:
The process of condensation occurs due to the decrease in temperature, which causes the particles in the gas phase to lose energy. As the temperature decreases, the kinetic energy of the gas particles decreases, and they begin to move more slowly. Consequently, the intermolecular forces between the particles become more significant, leading to the formation of liquid or solid particles.
Steps of Condensation:
1. Temperature Reduction: When the temperature drops, it reduces the kinetic energy of the gas particles.
2. Particle Movement: The gas particles slow down, and their movements become more restricted.
3. Intermolecular Forces: As the particles move slower, the attractive forces between them become stronger.
4. Particle Arrangement: The particles begin to come closer together, forming clusters or droplets.
5. Formation of Liquid or Solid: As the clusters or droplets grow, they eventually become large enough to form a liquid or solid substance.
Examples:
Condensation can be observed in various everyday situations, such as:
- Water droplets forming on the surface of a cold glass of water on a hot day.
- Cloud formation in the atmosphere, where water vapor condenses into liquid droplets or ice crystals.
- The formation of dew on grass or leaves during the early morning when the temperature drops.
Conclusion:
Condensation is the process by which a substance in its gaseous state changes into its liquid or solid state. It occurs when the temperature decreases, causing the gas particles to lose energy and move closer together. Understanding this process helps explain many natural phenomena and plays a crucial role in various scientific and practical applications.