Condensation

Condensation is the process by which a gas changes into a liquid. This occurs when the temperature of the gas decreases, causing the gas particles to lose energy and come closer together. As a result, the gas particles form a liquid as they condense. This process is the opposite of evaporation, where a liquid changes into a gas.

Key Concepts to Understand:

1. Gas to Liquid: Condensation is the transition of a substance from the gas phase to the liquid phase.
2. Temperature Decrease: Condensation occurs when the temperature of the gas decreases, leading to a decrease in energy and closer particle arrangement.
3. Formation of Water Droplets: In the atmosphere, condensation is responsible for the formation of clouds and fog as water vapor condenses into tiny water droplets.

Study Guide:

1. What is condensation?

Condensation is the process by which a gas changes into a liquid.

2. When does condensation occur?

Condensation occurs when the temperature of the gas decreases, causing the gas particles to lose energy and come closer together.

3. What are some examples of condensation in everyday life?

Condensation can be observed on the surface of a cold drink glass on a hot day, on bathroom mirrors after a hot shower, and on the windows of a car in winter.