Question

Condensation happens when moist air ____. A. gains heat by radiation and warms B. warms adiabatically as it sinks to a lower elevation C. cools adiabatically as it sinks to a lower elevation D. loses heat by radiation and cools

Answer 1

C. cools adiabatically as it sinks to a lower elevation

Step-by-step explanation:

Condensation is the phenomenon where there is a change of the state of matter from gas phase to liquid phase. Vaporization is the reverse of condensation. If a process occurs without the transfer of heat and mass of a thermodynamic system with its surroundings then it is known as an adiabatic process.

Moist air consists of water in gaseous state, so when it is cooled without any exchange of mass or heat there is change of phase.