Question

1. condensation is an exothermic process. this means that energy ______. has been added to a system has been absorbed from the environment has been removed from a system remains unchanged

Explanation:

Exothermic processes release energy. Condensation (gas to liquid) releases energy, meaning energy is removed from the system (the substance condensing) and released to the environment. So the correct option is the one stating energy has been removed from the system.

Answer:

has been removed from a system