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Adiabatic Lapse Rate, Latent Heat of Condensation Video Lecture - UPSC
FAQs on Adiabatic Lapse Rate, Latent Heat of Condensation Video Lecture - UPSC
| 1. What is the adiabatic lapse rate? |  |
Ans. The adiabatic lapse rate is the rate at which the temperature of a parcel of air changes as it rises or descends in the atmosphere without exchanging heat with its surroundings. There are two types of adiabatic lapse rates: the dry adiabatic lapse rate and the moist adiabatic lapse rate.
| 2. What is the dry adiabatic lapse rate? | |
Ans. The dry adiabatic lapse rate is the rate at which the temperature of a parcel of dry air changes as it rises or descends in the atmosphere without exchanging heat with its surroundings. It is approximately 9.8 degrees Celsius per kilometer.
| 3. What is the latent heat of condensation? | |
Ans. The latent heat of condensation is the heat energy released or absorbed when water vapor condenses into liquid water. When water vapor condenses, it releases latent heat, which warms the surrounding air. This process is important in the formation of clouds and precipitation.
| 4. How does the adiabatic lapse rate affect cloud formation? | |
Ans. The adiabatic lapse rate plays a crucial role in cloud formation. As a parcel of moist air rises in the atmosphere, it expands due to the decrease in atmospheric pressure. The expansion leads to adiabatic cooling, causing the parcel to cool at a rate called the moist adiabatic lapse rate. When the parcel reaches its dew point temperature, condensation occurs, forming clouds.
| 5. How does the latent heat of condensation contribute to atmospheric stability? | |
Ans. The latent heat of condensation contributes to atmospheric stability by releasing heat energy into the surrounding air when water vapor condenses. This heat release warms the air and makes it less dense, causing the air parcel to become buoyant and rise. As a result, the release of latent heat helps to stabilize the atmosphere by reducing the likelihood of vertical air movements and promoting more stable weather conditions.
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Nov 26, 2024 Last updated |
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