Question

If an unsaturated air parcel with a temperature of 20 degrees C rises, forms a non-precipitating cloud, then returns to its original altitude, a. the parcel's final temperature will be less than 20 degrees C b. the parcel's final temperature will be greater than 20 degrees C c. the parcel's final temperature will be exactly 20 degrees C

Answer 1

The answer is: b. The final temperature of the package will be greater than 20 degrees C.

Step-by-step explanation:

When an airbag with a temperature of 20 degrees Celsius is forced to pass through a mountain range of 2,500 m. of altitude. The dew point is reached at 900 m. and clouds form. The air is cooled approximately 1 degree Celsius every 100 meters to reach the dew point.

When the air begins to descend, its temperature rises at a rate of approximately 0.5 degree Celsius every 100 meters.

Therefore, the temperature will rise to 28 degrees Celsius after the descent.

The answer is: b. The final temperature of the package will be greater than 20 degrees C.