Question

The dry adiabatic lapse rate is _______ degrees celsius per kilometer

Answer 1

The dry adiabatic lapse rate is approximately 9.8 degrees Celsius per kilometer, indicating how temperature changes with altitude when no heat is exchanged with the surroundings.

Step-by-step explanation:

The dry adiabatic lapse rate, a fundamental concept in atmospheric sciences, is commonly observed to be approximately 9.8 degrees Celsius per kilometer. This rate signifies the temperature change experienced by a rising air parcel in the absence of any heat exchange with its surroundings, showcasing a phenomenon known as adiabatic cooling. As air ascends through the atmosphere, it undergoes expansion due to the diminishing atmospheric pressure. This expansion results in a temperature decrease, adhering to the principles of adiabatic processes. The dry adiabatic lapse rate serves as a benchmark in atmospheric studies, offering a standard reference for understanding the thermal behavior of rising air parcels under the assumption of no heat transfer with the environment. This foundational principle provides insights into the dynamics of atmospheric processes, contributing to the comprehensive understanding of temperature variations with altitude.

Answer 2

A dry adiabetic lapse rate is the rate of change in temperature in a rising or descending unsaturated air parcel which is approximately 9.8°c per 1000 meters (1 km). Adiabetic process does not involves transfer of heat between the surroundings and a system, the compression in the system results to warming and expansion results in cooling.