The discussion centers on the need to derive design equations for a Continuous Stirred Tank Reactor (CSTR) for an upcoming experiment. The original poster expresses uncertainty about the foundational principles and resources to begin this task. Participants emphasize the importance of clarity in terminology, specifically pointing out that "CSTR" refers to Continuous Stirred Tank Reactor, which is crucial for avoiding confusion. Recommendations for resources, such as specific websites, books, or PDFs that cover relevant equations and concepts related to CSTR design, are sought to aid in the derivation process.