The following diagrams illustrate the flow of energy (q) and work (w) in different processes. Which one is definitely an exothermic process?

Question

Quizplus · Accepted Answer

In process C, the energy flow (q) is negative (i.e. energy is released), and the work (w) is positive (i.e. work is done on the system). This indicates an exothermic process where energy is given off in the form of heat.

The Following Diagrams Illustrate the Flow of Energy (Q) and Work