What is the average rate of change for adiabatic cooling?

The average rate of change for adiabatic cooling is approximately 2 degrees Celsius per 1000 feet. This rate is commonly known as the dry adiabatic lapse rate, which applies to unsaturated air and is a critical concept in meteorology.

When air rises, it expands due to lower pressure at higher altitudes. As it expands, it cools without exchanging heat with its surroundings, which is why it is referred to as "adiabatic." The specific rate of cooling is about 2 degrees Celsius for every 1000 feet of elevation. Understanding this rate is essential for various applications, including aviation and weather forecasting, as it helps predict changes in temperature with altitude.

The other choices reflect different rates that may occur under various conditions (such as moist adiabatic lapse rates), but they do not correctly represent the average rate of change associated with adiabatic cooling in unsaturated air.